自学教程：C++ GetPixelGreen函数代码示例

// Same story for MagickPixelPacket, which is different in ways beyond my// understandingvoid sanpera_magick_pixel_to_doubles(MagickPixelPacket *pixel, double out[4]) {    out[0] = (double)(GetPixelRed(pixel)) / QuantumRange;    out[1] = (double)(GetPixelGreen(pixel)) / QuantumRange;    out[2] = (double)(GetPixelBlue(pixel)) / QuantumRange;    // Distinct from "opacity", which treats 0 as opaque    out[3] = (double)(GetPixelAlpha(pixel)) / QuantumRange;}

/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%                                                                             %%                                                                             %%                                                                             %%   S e t I m a g e A l p h a C h a n n e l                                   %%                                                                             %%                                                                             %%                                                                             %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%  SetImageAlphaChannel() activates, deactivates, resets, or sets the alpha%  channel.%%  The format of the SetImageAlphaChannel method is:%%      MagickBooleanType SetImageAlphaChannel(Image *image,%        const AlphaChannelType alpha_type)%%  A description of each parameter follows:%%    o image: the image.%%    o alpha_type:  The alpha channel type: ActivateAlphaChannel,%      AssociateAlphaChannel, CopyAlphaChannel, Disassociate,%      DeactivateAlphaChannel, ExtractAlphaChannel, OpaqueAlphaChannel,%      ResetAlphaChannel, SetAlphaChannel, ShapeAlphaChannel, and%      TransparentAlphaChannel.%*/MagickExport MagickBooleanType SetImageAlphaChannel(Image *image,  const AlphaChannelType alpha_type){  CacheView    *image_view;  ExceptionInfo    *exception;  MagickBooleanType    status;  ssize_t    y;  assert(image != (Image *) NULL);  if (image->debug != MagickFalse)    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");  assert(image->signature == MagickSignature);  exception=(&image->exception);  status=MagickTrue;  switch (alpha_type)  {    case ActivateAlphaChannel:    {      image->matte=MagickTrue;      break;    }    case AssociateAlphaChannel:    {      /*        Associate alpha.      */      status=SetImageStorageClass(image,DirectClass);      if (status == MagickFalse)        break;      image_view=AcquireAuthenticCacheView(image,exception);      #if defined(MAGICKCORE_OPENMP_SUPPORT)        #pragma omp parallel for schedule(static,4) shared(status) /          magick_threads(image,image,image->rows,1)      #endif      for (y=0; y < (ssize_t) image->rows; y++)      {        register PixelPacket          *restrict q;        register ssize_t          x;        if (status == MagickFalse)          continue;        q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,          exception);        if (q == (PixelPacket *) NULL)          {            status=MagickFalse;            continue;          }        for (x=0; x < (ssize_t) image->columns; x++)        {          double            alpha,            gamma;          alpha=QuantumScale*GetPixelAlpha(q);          gamma=alpha;          SetPixelRed(q,ClampToQuantum(gamma*GetPixelRed(q)));          SetPixelGreen(q,ClampToQuantum(gamma*GetPixelGreen(q)));          SetPixelBlue(q,ClampToQuantum(gamma*GetPixelBlue(q)));          q++;//.........这里部分代码省略.........

MagickExport MagickBooleanType SeparateImageChannel(Image *image,  const ChannelType channel){#define SeparateImageTag  "Separate/Image"  CacheView    *image_view;  ExceptionInfo    *exception;  MagickBooleanType    status;  MagickOffsetType    progress;  ssize_t    y;  assert(image != (Image *) NULL);  assert(image->signature == MagickSignature);  if (image->debug != MagickFalse)    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);  if (SetImageStorageClass(image,DirectClass) == MagickFalse)    return(MagickFalse);  if (channel == GrayChannels)    image->matte=MagickTrue;  /*    Separate image channels.  */  status=MagickTrue;  progress=0;  exception=(&image->exception);  image_view=AcquireAuthenticCacheView(image,exception);#if defined(MAGICKCORE_OPENMP_SUPPORT)  #pragma omp parallel for schedule(static,4) shared(progress,status) /    magick_threads(image,image,image->rows,1)#endif  for (y=0; y < (ssize_t) image->rows; y++)  {    register IndexPacket      *restrict indexes;    register PixelPacket      *restrict q;    register ssize_t      x;    if (status == MagickFalse)      continue;    q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,exception);    if (q == (PixelPacket *) NULL)      {        status=MagickFalse;        continue;      }    indexes=GetCacheViewAuthenticIndexQueue(image_view);    switch (channel)    {      case RedChannel:      {        for (x=0; x < (ssize_t) image->columns; x++)        {          SetPixelGreen(q,GetPixelRed(q));          SetPixelBlue(q,GetPixelRed(q));          q++;        }        break;      }      case GreenChannel:      {        for (x=0; x < (ssize_t) image->columns; x++)        {          SetPixelRed(q,GetPixelGreen(q));          SetPixelBlue(q,GetPixelGreen(q));          q++;        }        break;      }      case BlueChannel:      {        for (x=0; x < (ssize_t) image->columns; x++)        {          SetPixelRed(q,GetPixelBlue(q));          SetPixelGreen(q,GetPixelBlue(q));          q++;        }        break;      }      case OpacityChannel:      {        for (x=0; x < (ssize_t) image->columns; x++)        {          SetPixelRed(q,GetPixelOpacity(q));          SetPixelGreen(q,GetPixelOpacity(q));          SetPixelBlue(q,GetPixelOpacity(q));          q++;        }//.........这里部分代码省略.........

//.........这里部分代码省略.........    *q;  RGBQUAD    *bitmap_bits;  ssize_t    y;  /*    Check crop geometry.  */  assert(image != (const Image *) NULL);  assert(image->signature == MagickSignature);  if (image->debug != MagickFalse)    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);  assert(geometry != (const RectangleInfo *) NULL);  assert(exception != (ExceptionInfo *) NULL);  assert(exception->signature == MagickSignature);  if (((geometry->x+(ssize_t) geometry->width) < 0) ||      ((geometry->y+(ssize_t) geometry->height) < 0) ||      (geometry->x >= (ssize_t) image->columns) ||      (geometry->y >= (ssize_t) image->rows))    ThrowImageException(OptionError,"GeometryDoesNotContainImage");  page=(*geometry);  if ((page.x+(ssize_t) page.width) > (ssize_t) image->columns)    page.width=image->columns-page.x;  if ((page.y+(ssize_t) page.height) > (ssize_t) image->rows)    page.height=image->rows-page.y;  if (page.x < 0)    {      page.width+=page.x;      page.x=0;    }  if (page.y < 0)    {      page.height+=page.y;      page.y=0;    }  if ((page.width == 0) || (page.height == 0))    ThrowImageException(OptionError,"GeometryDimensionsAreZero");  /*    Initialize crop image attributes.  */  bitmap.bmType         = 0;  bitmap.bmWidth        = (LONG) page.width;  bitmap.bmHeight       = (LONG) page.height;  bitmap.bmWidthBytes   = bitmap.bmWidth * 4;  bitmap.bmPlanes       = 1;  bitmap.bmBitsPixel    = 32;  bitmap.bmBits         = NULL;  bitmap_bitsH=(HANDLE) GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE,page.width*    page.height*bitmap.bmBitsPixel);  if (bitmap_bitsH == NULL)    return(NULL);  bitmap_bits=(RGBQUAD *) GlobalLock((HGLOBAL) bitmap_bitsH);  if ( bitmap.bmBits == NULL )    bitmap.bmBits = bitmap_bits;  if (IssRGBCompatibleColorspace(image->colorspace) == MagickFalse)    SetImageColorspace(image,sRGBColorspace);  /*    Extract crop image.  */  q=bitmap_bits;  for (y=0; y < (ssize_t) page.height; y++)  {    register ssize_t      x;    p=GetVirtualPixels(image,page.x,page.y+y,page.width,1,exception);    if (p == (const PixelPacket *) NULL)      break;    /* Transfer pixels, scaling to Quantum */    for( x=(ssize_t) page.width ; x> 0 ; x-- )    {      q->rgbRed = ScaleQuantumToChar(GetPixelRed(p));      q->rgbGreen = ScaleQuantumToChar(GetPixelGreen(p));      q->rgbBlue = ScaleQuantumToChar(GetPixelBlue(p));      q->rgbReserved = 0;      p++;      q++;    }    proceed=SetImageProgress(image,CropImageTag,y,page.height);    if (proceed == MagickFalse)      break;  }  if (y < (ssize_t) page.height)    {      GlobalUnlock((HGLOBAL) bitmap_bitsH);      GlobalFree((HGLOBAL) bitmap_bitsH);      return((void *) NULL);    }  bitmap.bmBits=bitmap_bits;  bitmapH=CreateBitmapIndirect(&bitmap);  GlobalUnlock((HGLOBAL) bitmap_bitsH);  GlobalFree((HGLOBAL) bitmap_bitsH);  return((void *) bitmapH);}

//.........这里部分代码省略.........                        break;                }            }        }        else if (image->storage_class == PseudoClass)            for (y=0; y < (ssize_t) image->rows; y++)            {                q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);                if (q == (Quantum *) NULL)                    break;                for (x=0; x < (ssize_t) image->columns; x++)                {                    SetPixelIndex(image,*p++,q);                    q+=GetPixelChannels(image);                }                if (SyncAuthenticPixels(image,exception) == MagickFalse)                    break;                if (image->previous == (Image *) NULL)                {                    status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y,                                            image->rows);                    if (status == MagickFalse)                        break;                }            }        else        {            /*              Convert DirectColor scanline.            */            number_pixels=(MagickSizeType) image->columns*image->rows;            for (y=0; y < (ssize_t) image->rows; y++)            {                q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);                if (q == (Quantum *) NULL)                    break;                for (x=0; x < (ssize_t) image->columns; x++)                {                    SetPixelRed(image,ScaleCharToQuantum(*p),q);                    SetPixelGreen(image,ScaleCharToQuantum(*(p+number_pixels)),q);                    SetPixelBlue(image,ScaleCharToQuantum(*(p+2*number_pixels)),q);                    if (image->colors != 0)                    {                        SetPixelRed(image,image->colormap[(ssize_t)                                                          GetPixelRed(image,q)].red,q);                        SetPixelGreen(image,image->colormap[(ssize_t)                                                            GetPixelGreen(image,q)].green,q);                        SetPixelBlue(image,image->colormap[(ssize_t)                                                           GetPixelBlue(image,q)].blue,q);                    }                    SetPixelAlpha(image,image->alpha_trait == BlendPixelTrait ?                                  ScaleCharToQuantum(*(p+number_pixels*3)) : OpaqueAlpha,q);                    p++;                    q+=GetPixelChannels(image);                }                if (SyncAuthenticPixels(image,exception) == MagickFalse)                    break;                if (image->previous == (Image *) NULL)                {                    status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y,                                            image->rows);                    if (status == MagickFalse)                        break;                }            }        }        viff_pixels=(unsigned char *) RelinquishMagickMemory(viff_pixels);        if (image->storage_class == PseudoClass)            (void) SyncImage(image,exception);        if (EOFBlob(image) != MagickFalse)        {            ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",                               image->filename);            break;        }        /*          Proceed to next image.        */        if (image_info->number_scenes != 0)            if (image->scene >= (image_info->scene+image_info->number_scenes-1))                break;        count=ReadBlob(image,1,&viff_info.identifier);        if ((count != 0) && (viff_info.identifier == 0xab))        {            /*              Allocate next image structure.            */            AcquireNextImage(image_info,image,exception);            if (GetNextImageInList(image) == (Image *) NULL)            {                image=DestroyImageList(image);                return((Image *) NULL);            }            image=SyncNextImageInList(image);            status=SetImageProgress(image,LoadImagesTag,TellBlob(image),                                    GetBlobSize(image));            if (status == MagickFalse)                break;        }    } while ((count != 0) && (viff_info.identifier == 0xab));

//.........这里部分代码省略.........    compression;  MagickBooleanType    status;  register const Quantum    *p;  register ssize_t    x;  ssize_t    y;  /*    Open output image file.  */  assert(image_info != (const ImageInfo *) NULL);  assert(image_info->signature == MagickSignature);  assert(image != (Image *) NULL);  assert(image->signature == MagickSignature);  if (image->debug != MagickFalse)    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);  assert(exception != (ExceptionInfo *) NULL);  assert(exception->signature == MagickSignature);  status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);  if (status == MagickFalse)    return(status);  write_info=CloneImageInfo(image_info);  (void) AcquireUniqueFilename(write_info->filename);  hdr_info=ImfNewHeader();  ImfHeaderSetDataWindow(hdr_info,0,0,(int) image->columns-1,(int)    image->rows-1);  ImfHeaderSetDisplayWindow(hdr_info,0,0,(int) image->columns-1,(int)    image->rows-1);  compression=IMF_NO_COMPRESSION;  if (write_info->compression == ZipSCompression)    compression=IMF_ZIPS_COMPRESSION;  if (write_info->compression == ZipCompression)    compression=IMF_ZIP_COMPRESSION;  if (write_info->compression == PizCompression)    compression=IMF_PIZ_COMPRESSION;  if (write_info->compression == Pxr24Compression)    compression=IMF_PXR24_COMPRESSION;#if defined(B44Compression)  if (write_info->compression == B44Compression)    compression=IMF_B44_COMPRESSION;#endif#if defined(B44ACompression)  if (write_info->compression == B44ACompression)    compression=IMF_B44A_COMPRESSION;#endif  ImfHeaderSetCompression(hdr_info,compression);  ImfHeaderSetLineOrder(hdr_info,IMF_INCREASING_Y);  file=ImfOpenOutputFile(write_info->filename,hdr_info,IMF_WRITE_RGBA);  ImfDeleteHeader(hdr_info);  if (file == (ImfOutputFile *) NULL)    {      ThrowFileException(exception,BlobError,"UnableToOpenBlob",        ImfErrorMessage());      write_info=DestroyImageInfo(write_info);      return(MagickFalse);    }  scanline=(ImfRgba *) AcquireQuantumMemory(image->columns,sizeof(*scanline));  if (scanline == (ImfRgba *) NULL)    {      (void) ImfCloseOutputFile(file);      ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");    }  for (y=0; y < (ssize_t) image->rows; y++)  {    p=GetVirtualPixels(image,0,y,image->columns,1,exception);    if (p == (const Quantum *) NULL)      break;    for (x=0; x < (ssize_t) image->columns; x++)    {      ImfFloatToHalf(QuantumScale*GetPixelRed(image,p),&half_quantum);      scanline[x].r=half_quantum;      ImfFloatToHalf(QuantumScale*GetPixelGreen(image,p),&half_quantum);      scanline[x].g=half_quantum;      ImfFloatToHalf(QuantumScale*GetPixelBlue(image,p),&half_quantum);      scanline[x].b=half_quantum;      if (image->matte == MagickFalse)        ImfFloatToHalf(1.0,&half_quantum);      else        ImfFloatToHalf(QuantumScale*GetPixelAlpha(image,p),&half_quantum);      scanline[x].a=half_quantum;      p+=GetPixelChannels(image);    }    ImfOutputSetFrameBuffer(file,scanline-(y*image->columns),1,image->columns);    ImfOutputWritePixels(file,1);  }  (void) ImfCloseOutputFile(file);  scanline=(ImfRgba *) RelinquishMagickMemory(scanline);  (void) FileToImage(image,write_info->filename,exception);  (void) RelinquishUniqueFileResource(write_info->filename);  write_info=DestroyImageInfo(write_info);  (void) CloseBlob(image);  return(MagickTrue);}

static MagickBooleanType InverseFourier(FourierInfo *fourier_info,  const Image *magnitude_image,const Image *phase_image,fftw_complex *fourier,  ExceptionInfo *exception){  CacheView    *magnitude_view,    *phase_view;  double    *magnitude,    *phase,    *magnitude_source,    *phase_source;  MagickBooleanType    status;  register const IndexPacket    *indexes;  register const PixelPacket    *p;  register ssize_t    i,    x;  ssize_t    y;  /*    Inverse fourier - read image and break down into a double array.  */  magnitude_source=(double *) AcquireQuantumMemory((size_t)    fourier_info->height,fourier_info->width*sizeof(*magnitude_source));  if (magnitude_source == (double *) NULL)    {      (void) ThrowMagickException(exception,GetMagickModule(),        ResourceLimitError,"MemoryAllocationFailed","`%s'",        magnitude_image->filename);      return(MagickFalse);    }  phase_source=(double *) AcquireQuantumMemory((size_t) fourier_info->height,    fourier_info->width*sizeof(*phase_source));  if (phase_source == (double *) NULL)    {      (void) ThrowMagickException(exception,GetMagickModule(),        ResourceLimitError,"MemoryAllocationFailed","`%s'",        magnitude_image->filename);      magnitude_source=(double *) RelinquishMagickMemory(magnitude_source);      return(MagickFalse);    }  i=0L;  magnitude_view=AcquireVirtualCacheView(magnitude_image,exception);  for (y=0L; y < (ssize_t) fourier_info->height; y++)  {    p=GetCacheViewVirtualPixels(magnitude_view,0L,y,fourier_info->width,1UL,      exception);    if (p == (const PixelPacket *) NULL)      break;    indexes=GetCacheViewAuthenticIndexQueue(magnitude_view);    for (x=0L; x < (ssize_t) fourier_info->width; x++)    {      switch (fourier_info->channel)      {        case RedChannel:        default:        {          magnitude_source[i]=QuantumScale*GetPixelRed(p);          break;        }        case GreenChannel:        {          magnitude_source[i]=QuantumScale*GetPixelGreen(p);          break;        }        case BlueChannel:        {          magnitude_source[i]=QuantumScale*GetPixelBlue(p);          break;        }        case OpacityChannel:        {          magnitude_source[i]=QuantumScale*GetPixelOpacity(p);          break;        }        case IndexChannel:        {          magnitude_source[i]=QuantumScale*GetPixelIndex(indexes+x);          break;        }        case GrayChannels:        {          magnitude_source[i]=QuantumScale*GetPixelGray(p);          break;        }      }      i++;      p++;    }//.........这里部分代码省略.........

//.........这里部分代码省略.........  if (image_info->density == (char *) NULL)    (void) ParseAbsoluteGeometry(HistogramDensity,&geometry);  else    (void) ParseAbsoluteGeometry(image_info->density,&geometry);  histogram_image=CloneImage(image,geometry.width,geometry.height,MagickTrue,    exception);  if (histogram_image == (Image *) NULL)    ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");  (void) SetImageStorageClass(histogram_image,DirectClass,exception);  /*    Allocate histogram count arrays.  */  length=MagickMax((size_t) ScaleQuantumToChar(QuantumRange)+1UL,    histogram_image->columns);  histogram=(PixelInfo *) AcquireQuantumMemory(length,sizeof(*histogram));  if (histogram == (PixelInfo *) NULL)    {      histogram_image=DestroyImage(histogram_image);      ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");    }  /*    Initialize histogram count arrays.  */  (void) ResetMagickMemory(histogram,0,length*sizeof(*histogram));  for (y=0; y < (ssize_t) image->rows; y++)  {    p=GetVirtualPixels(image,0,y,image->columns,1,exception);    if (p == (const Quantum *) NULL)      break;    for (x=0; x < (ssize_t) image->columns; x++)    {      if ((GetPixelRedTraits(image) & UpdatePixelTrait) != 0)        histogram[ScaleQuantumToChar(GetPixelRed(image,p))].red++;      if ((GetPixelGreenTraits(image) & UpdatePixelTrait) != 0)        histogram[ScaleQuantumToChar(GetPixelGreen(image,p))].green++;      if ((GetPixelBlueTraits(image) & UpdatePixelTrait) != 0)        histogram[ScaleQuantumToChar(GetPixelBlue(image,p))].blue++;      p+=GetPixelChannels(image);    }  }  maximum=histogram[0].red;  for (x=0; x < (ssize_t) histogram_image->columns; x++)  {    if (((GetPixelRedTraits(image) & UpdatePixelTrait) != 0) &&        (maximum < histogram[x].red))      maximum=histogram[x].red;    if (((GetPixelGreenTraits(image) & UpdatePixelTrait) != 0) &&        (maximum < histogram[x].green))      maximum=histogram[x].green;    if (((GetPixelBlueTraits(image) & UpdatePixelTrait) != 0) &&        (maximum < histogram[x].blue))      maximum=histogram[x].blue;  }  scale=0.0;  if (fabs(maximum) >= MagickEpsilon)    scale=(double) histogram_image->rows/maximum;  /*    Initialize histogram image.  */  (void) QueryColorCompliance("#000000",AllCompliance,    &histogram_image->background_color,exception);  (void) SetImageBackgroundColor(histogram_image,exception);  for (x=0; x < (ssize_t) histogram_image->columns; x++)  {    q=GetAuthenticPixels(histogram_image,x,0,1,histogram_image->rows,exception);    if (q == (Quantum *) NULL)

//.........这里部分代码省略.........  /*    Raise image.  */  status=MagickTrue;  progress=0;  exception=(&image->exception);  image_view=AcquireAuthenticCacheView(image,exception);#if defined(MAGICKCORE_OPENMP_SUPPORT)  #pragma omp parallel for schedule(static,4) shared(status) /    magick_threads(image,image,1,1)#endif  for (y=0; y < (ssize_t) raise_info->height; y++)  {    register ssize_t      x;    register PixelPacket      *restrict q;    if (status == MagickFalse)      continue;    q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,exception);    if (q == (PixelPacket *) NULL)      {        status=MagickFalse;        continue;      }    for (x=0; x < y; x++)    {      SetPixelRed(q,ClampToQuantum(QuantumScale*((MagickRealType)        GetPixelRed(q)*HighlightFactor+(MagickRealType) foreground*        (QuantumRange-HighlightFactor))));      SetPixelGreen(q,ClampToQuantum(QuantumScale*((MagickRealType)        GetPixelGreen(q)*HighlightFactor+(MagickRealType) foreground*        (QuantumRange-HighlightFactor))));      SetPixelBlue(q,ClampToQuantum(QuantumScale*((MagickRealType)        GetPixelBlue(q)*HighlightFactor+(MagickRealType) foreground*        (QuantumRange-HighlightFactor))));      q++;    }    for ( ; x < (ssize_t) (image->columns-y); x++)    {      SetPixelRed(q,ClampToQuantum(QuantumScale*((MagickRealType)        GetPixelRed(q)*AccentuateFactor+(MagickRealType) foreground*        (QuantumRange-AccentuateFactor))));      SetPixelGreen(q,ClampToQuantum(QuantumScale*((MagickRealType)        GetPixelGreen(q)*AccentuateFactor+(MagickRealType) foreground*        (QuantumRange-AccentuateFactor))));      SetPixelBlue(q,ClampToQuantum(QuantumScale*((MagickRealType)        GetPixelBlue(q)*AccentuateFactor+(MagickRealType) foreground*        (QuantumRange-AccentuateFactor))));      q++;    }    for ( ; x < (ssize_t) image->columns; x++)    {      SetPixelRed(q,ClampToQuantum(QuantumScale*((MagickRealType)        GetPixelRed(q)*ShadowFactor+(MagickRealType) background*        (QuantumRange-ShadowFactor))));      SetPixelGreen(q,ClampToQuantum(QuantumScale*((MagickRealType)        GetPixelGreen(q)*ShadowFactor+(MagickRealType) background*        (QuantumRange-ShadowFactor))));      SetPixelBlue(q,ClampToQuantum(QuantumScale*((MagickRealType)        GetPixelBlue(q)*ShadowFactor+(MagickRealType) background*        (QuantumRange-ShadowFactor))));      q++;    }

//.........这里部分代码省略.........  else    (void) WriteBlobLSBLong(image,VIPS_MAGIC_MSB);  (void) WriteBlobLong(image,(unsigned int) image->columns);  (void) WriteBlobLong(image,(unsigned int) image->rows);  (void) SetImageStorageClass(image,DirectClass);  channels=image->matte ? 4 : 3;  if (SetImageGray(image,&image->exception) != MagickFalse)    channels=image->matte ? 2 : 1;  else if (image->colorspace == CMYKColorspace)    channels=image->matte ? 5 : 4;  (void) WriteBlobLong(image,channels);  (void) WriteBlobLong(image,0);  if (image->depth == 16)    (void) WriteBlobLong(image,(unsigned int) VIPSBandFormatUSHORT);  else    {      image->depth=8;      (void) WriteBlobLong(image,(unsigned int) VIPSBandFormatUCHAR);    }  (void) WriteBlobLong(image,VIPSCodingNONE);  switch(image->colorspace)  {    case CMYKColorspace:      (void) WriteBlobLong(image,VIPSTypeCMYK);      break;    case GRAYColorspace:      if (image->depth == 16)        (void) WriteBlobLong(image, VIPSTypeGREY16);      else        (void) WriteBlobLong(image, VIPSTypeB_W);      break;    case RGBColorspace:      if (image->depth == 16)        (void) WriteBlobLong(image, VIPSTypeRGB16);      else        (void) WriteBlobLong(image, VIPSTypeRGB);      break;    default:    case sRGBColorspace:      (void) SetImageColorspace(image,sRGBColorspace);      (void) WriteBlobLong(image,VIPSTypesRGB);      break;  }  if (image->units == PixelsPerCentimeterResolution)    {      (void) WriteBlobFloat(image,(image->x_resolution / 10));      (void) WriteBlobFloat(image,(image->y_resolution / 10));    }  else if (image->units == PixelsPerInchResolution)    {      (void) WriteBlobFloat(image,(image->x_resolution / 25.4));      (void) WriteBlobFloat(image,(image->y_resolution / 25.4));    }  else    {      (void) WriteBlobLong(image,0);      (void) WriteBlobLong(image,0);    }  /*    Legacy, Offsets, Future  */  for (y=0; y < 24; y++)    (void) WriteBlobByte(image,0);  for (y=0; y < (ssize_t) image->rows; y++)  {    p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception);    if (p == (const PixelPacket *) NULL)      break;    indexes=GetVirtualIndexQueue(image);    for (x=0; x < (ssize_t) image->columns; x++)    {      WriteVIPSPixel(image,GetPixelRed(p));      if (channels == 2)        WriteVIPSPixel(image,GetPixelAlpha(p));      else        {          WriteVIPSPixel(image,GetPixelGreen(p));          WriteVIPSPixel(image,GetPixelBlue(p));          if (channels >= 4)            {              if (image->colorspace == CMYKColorspace)                WriteVIPSPixel(image,GetPixelIndex(indexes+x));              else                WriteVIPSPixel(image,GetPixelAlpha(p));            }          else if (channels == 5)            {               WriteVIPSPixel(image,GetPixelIndex(indexes+x));               WriteVIPSPixel(image,GetPixelAlpha(p));            }        }      p++;    }  }  metadata=GetImageProperty(image,"vips:metadata");  if (metadata != (const char*) NULL)    WriteBlobString(image,metadata);  (void) CloseBlob(image);  return(status);}

//.........这里部分代码省略.........    grays[i].blue=(~0U);    grays[i].opacity=(~0U);    grays[i].index=(~0U);  }  status=MagickTrue;  image_view=AcquireCacheView(image);#if defined(MAGICKCORE_OPENMP_SUPPORT)  #pragma omp parallel for schedule(static,4) shared(status)#endif  for (y=0; y < (ssize_t) image->rows; y++)  {    register const IndexPacket      *restrict indexes;    register const PixelPacket      *restrict p;    register ssize_t      x;    if (status == MagickFalse)      continue;    p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception);    if (p == (const PixelPacket *) NULL)      {        status=MagickFalse;        continue;      }    indexes=GetCacheViewVirtualIndexQueue(image_view);    for (x=0; x < (ssize_t) image->columns; x++)    {      grays[ScaleQuantumToMap(GetPixelRed(p))].red=        ScaleQuantumToMap(GetPixelRed(p));      grays[ScaleQuantumToMap(GetPixelGreen(p))].green=        ScaleQuantumToMap(GetPixelGreen(p));      grays[ScaleQuantumToMap(GetPixelBlue(p))].blue=        ScaleQuantumToMap(GetPixelBlue(p));      if (image->colorspace == CMYKColorspace)        grays[ScaleQuantumToMap(GetPixelIndex(indexes+x))].index=          ScaleQuantumToMap(GetPixelIndex(indexes+x));      if (image->matte != MagickFalse)        grays[ScaleQuantumToMap(GetPixelOpacity(p))].opacity=          ScaleQuantumToMap(GetPixelOpacity(p));      p++;    }  }  image_view=DestroyCacheView(image_view);  if (status == MagickFalse)    {      grays=(LongPixelPacket *) RelinquishMagickMemory(grays);      channel_features=(ChannelFeatures *) RelinquishMagickMemory(        channel_features);      return(channel_features);    }  (void) ResetMagickMemory(&gray,0,sizeof(gray));  for (i=0; i <= (ssize_t) MaxMap; i++)  {    if (grays[i].red != ~0U)      grays[(ssize_t) gray.red++].red=grays[i].red;    if (grays[i].green != ~0U)      grays[(ssize_t) gray.green++].green=grays[i].green;    if (grays[i].blue != ~0U)      grays[(ssize_t) gray.blue++].blue=grays[i].blue;    if (image->colorspace == CMYKColorspace)      if (grays[i].index != ~0U)        grays[(ssize_t) gray.index++].index=grays[i].index;

//.........这里部分代码省略.........          {            length=GetQuantumExtent(canvas_image,quantum_info,quantum_type);            count=ReadBlob(image,length,pixels);          }        for (y=0; y < (ssize_t) image->extract_info.height; y++)        {          if (count != (ssize_t) length)            {              ThrowFileException(exception,CorruptImageError,                "UnexpectedEndOfFile",image->filename);              break;            }          q=GetAuthenticPixels(canvas_image,0,0,canvas_image->columns,1,            exception);          if (q == (PixelPacket *) NULL)            break;          length=ImportQuantumPixels(canvas_image,(CacheView *) NULL,            quantum_info,quantum_type,pixels,exception);          if (SyncAuthenticPixels(canvas_image,exception) == MagickFalse)            break;          if (((y-image->extract_info.y) >= 0) &&               ((y-image->extract_info.y) < (ssize_t) image->rows))            {              p=GetVirtualPixels(canvas_image,canvas_image->extract_info.x,0,                canvas_image->columns,1,exception);              q=QueueAuthenticPixels(image,0,y-image->extract_info.y,                image->columns,1,exception);              if ((p == (const PixelPacket *) NULL) ||                  (q == (PixelPacket *) NULL))                break;              for (x=0; x < (ssize_t) image->columns; x++)              {                SetPixelRed(q,GetPixelRed(p));                SetPixelGreen(q,GetPixelGreen(p));                SetPixelBlue(q,GetPixelBlue(p));                if (image->matte != MagickFalse)                  SetPixelOpacity(q,GetPixelOpacity(p));                p++;                q++;              }              if (SyncAuthenticPixels(image,exception) == MagickFalse)                break;            }          if (image->previous == (Image *) NULL)            {              status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y,                image->rows);              if (status == MagickFalse)                break;            }          count=ReadBlob(image,length,pixels);        }        break;      }      case LineInterlace:      {        static QuantumType          quantum_types[4] =          {            RedQuantum,            GreenQuantum,            BlueQuantum,            OpacityQuantum          };        /*

//.........这里部分代码省略.........      break;    }  }  /*    Convert to JPEG 2000 pixels.  */  for (i=0; i < (ssize_t) number_components; i++)  {    pixels[i]=jas_matrix_create(1,(int) image->columns);    if (pixels[i] == (jas_matrix_t *) NULL)      {        for (x=0; x < i; x++)          jas_matrix_destroy(pixels[x]);        jas_image_destroy(jp2_image);        ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");      }  }  range=GetQuantumRange((size_t) component_info[0].prec);  for (y=0; y < (ssize_t) image->rows; y++)  {    p=GetVirtualPixels(image,0,y,image->columns,1,exception);    if (p == (const Quantum *) NULL)      break;    for (x=0; x < (ssize_t) image->columns; x++)    {      if (number_components == 1)        jas_matrix_setv(pixels[0],x,(jas_seqent_t) ScaleQuantumToAny(          GetPixelIntensity(image,p),range));      else        {          jas_matrix_setv(pixels[0],x,(jas_seqent_t) ScaleQuantumToAny(            GetPixelRed(image,p),range));          jas_matrix_setv(pixels[1],x,(jas_seqent_t) ScaleQuantumToAny(            GetPixelGreen(image,p),range));          jas_matrix_setv(pixels[2],x,(jas_seqent_t) ScaleQuantumToAny(            GetPixelBlue(image,p),range));          if (number_components > 3)            jas_matrix_setv(pixels[3],x,(jas_seqent_t) ScaleQuantumToAny(              GetPixelAlpha(image,p),range));        }      p+=GetPixelChannels(image);    }    for (i=0; i < (ssize_t) number_components; i++)      (void) jas_image_writecmpt(jp2_image,(short) i,0,(unsigned int) y,        (unsigned int) image->columns,1,pixels[i]);    status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,      image->rows);    if (status == MagickFalse)      break;  }  (void) CopyMagickString(magick,image_info->magick,MaxTextExtent);  if (LocaleCompare(magick,"J2C") == 0)    (void) CopyMagickString(magick,"JPC",MaxTextExtent);  LocaleLower(magick);  format=jas_image_strtofmt(magick);  options=(char *) NULL;  ResetImageOptionIterator(image_info);  key=GetNextImageOption(image_info);  for ( ; key != (char *) NULL; key=GetNextImageOption(image_info))  {    option=GetImageOption(image_info,key);    if (option == (const char *) NULL)      continue;    if (LocaleNCompare(key,"jp2:",4) == 0)      {        (void) ConcatenateString(&options,key+4);

static MagickBooleanType WriteSGIImage(const ImageInfo *image_info,Image *image){  CompressionType    compression;  const char    *value;  MagickBooleanType    status;  MagickOffsetType    scene;  MagickSizeType    number_pixels;  MemoryInfo    *pixel_info;  SGIInfo    iris_info;  register const PixelPacket    *p;  register ssize_t    i,    x;  register unsigned char    *q;  ssize_t    y,    z;  unsigned char    *pixels,    *packets;  /*    Open output image file.  */  assert(image_info != (const ImageInfo *) NULL);  assert(image_info->signature == MagickSignature);  assert(image != (Image *) NULL);  assert(image->signature == MagickSignature);  if (image->debug != MagickFalse)    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);  if ((image->columns > 65535UL) || (image->rows > 65535UL))    ThrowWriterException(ImageError,"WidthOrHeightExceedsLimit");  status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception);  if (status == MagickFalse)    return(status);  scene=0;  do  {    /*      Initialize SGI raster file header.    */    (void) TransformImageColorspace(image,sRGBColorspace);    (void) ResetMagickMemory(&iris_info,0,sizeof(iris_info));    iris_info.magic=0x01DA;    compression=image->compression;    if (image_info->compression != UndefinedCompression)      compression=image_info->compression;    if (image->depth > 8)      compression=NoCompression;    if (compression == NoCompression)      iris_info.storage=(unsigned char) 0x00;    else      iris_info.storage=(unsigned char) 0x01;    iris_info.bytes_per_pixel=(unsigned char) (image->depth > 8 ? 2 : 1);    iris_info.dimension=3;    iris_info.columns=(unsigned short) image->columns;    iris_info.rows=(unsigned short) image->rows;    if (image->matte != MagickFalse)      iris_info.depth=4;    else      {        if ((image_info->type != TrueColorType) &&            (SetImageGray(image,&image->exception) != MagickFalse))          {            iris_info.dimension=2;            iris_info.depth=1;          }        else          iris_info.depth=3;      }    iris_info.minimum_value=0;    iris_info.maximum_value=(size_t) (image->depth <= 8 ?      1UL*ScaleQuantumToChar(QuantumRange) :      1UL*ScaleQuantumToShort(QuantumRange));    /*      Write SGI header.    */    (void) WriteBlobMSBShort(image,iris_info.magic);    (void) WriteBlobByte(image,iris_info.storage);    (void) WriteBlobByte(image,iris_info.bytes_per_pixel);//.........这里部分代码省略.........

static MagickBooleanType StatisticsComponentsStatistics(const Image *image,        const Image *component_image,const size_t number_objects,        ExceptionInfo *exception){    CacheView    *component_view,    *image_view;    CCObject    *object;    MagickBooleanType    status;    register ssize_t    i;    ssize_t    y;    /*      Collect statistics on unique objects.    */    object=(CCObject *) AcquireQuantumMemory(number_objects,sizeof(*object));    if (object == (CCObject *) NULL)    {        (void) ThrowMagickException(exception,GetMagickModule(),                                    ResourceLimitError,"MemoryAllocationFailed","`%s'",image->filename);        return(MagickFalse);    }    (void) ResetMagickMemory(object,0,number_objects*sizeof(*object));    for (i=0; i < (ssize_t) number_objects; i++)    {        object[i].id=i;        object[i].bounding_box.x=(ssize_t) component_image->columns;        object[i].bounding_box.y=(ssize_t) component_image->rows;        GetPixelInfo(image,&object[i].color);    }    status=MagickTrue;    image_view=AcquireVirtualCacheView(image,exception);    component_view=AcquireVirtualCacheView(component_image,exception);    for (y=0; y < (ssize_t) image->rows; y++)    {        register const Quantum        *magick_restrict p,        *magick_restrict q;        register ssize_t        x;        if (status == MagickFalse)            continue;        p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception);        q=GetCacheViewVirtualPixels(component_view,0,y,component_image->columns,1,                                    exception);        if ((p == (const Quantum *) NULL) || (q == (const Quantum *) NULL))        {            status=MagickFalse;            continue;        }        for (x=0; x < (ssize_t) image->columns; x++)        {            i=(ssize_t) GetPixelIntensity(image,q);            if (x < object[i].bounding_box.x)                object[i].bounding_box.x=x;            if (x > (ssize_t) object[i].bounding_box.width)                object[i].bounding_box.width=(size_t) x;            if (y < object[i].bounding_box.y)                object[i].bounding_box.y=y;            if (y > (ssize_t) object[i].bounding_box.height)                object[i].bounding_box.height=(size_t) y;            object[i].color.red+=GetPixelRed(image,p);            object[i].color.green+=GetPixelGreen(image,p);            object[i].color.blue+=GetPixelBlue(image,p);            object[i].color.alpha+=GetPixelAlpha(image,p);            object[i].color.black+=GetPixelBlack(image,p);            object[i].centroid.x+=x;            object[i].centroid.y+=y;            object[i].area++;            p+=GetPixelChannels(image);            q+=GetPixelChannels(component_image);        }    }    for (i=0; i < (ssize_t) number_objects; i++)    {        object[i].bounding_box.width-=(object[i].bounding_box.x-1);        object[i].bounding_box.height-=(object[i].bounding_box.y-1);        object[i].color.red=object[i].color.red/object[i].area;        object[i].color.green=object[i].color.green/object[i].area;        object[i].color.blue=object[i].color.blue/object[i].area;        object[i].color.alpha=object[i].color.alpha/object[i].area;        object[i].color.black=object[i].color.black/object[i].area;        object[i].centroid.x=object[i].centroid.x/object[i].area;        object[i].centroid.y=object[i].centroid.y/object[i].area;    }    component_view=DestroyCacheView(component_view);    image_view=DestroyCacheView(image_view);    /*      Report statistics on unique objects.    *///.........这里部分代码省略.........

//.........这里部分代码省略.........      (void) WriteBlob(image,(size_t) count,(unsigned char *) header);    }  if (image->gamma != 0.0)    {      count=FormatLocaleString(header,MaxTextExtent,"GAMMA=%g/n",image->gamma);      (void) WriteBlob(image,(size_t) count,(unsigned char *) header);    }  count=FormatLocaleString(header,MaxTextExtent,    "PRIMARIES=%g %g %g %g %g %g %g %g/n",    image->chromaticity.red_primary.x,image->chromaticity.red_primary.y,    image->chromaticity.green_primary.x,image->chromaticity.green_primary.y,    image->chromaticity.blue_primary.x,image->chromaticity.blue_primary.y,    image->chromaticity.white_point.x,image->chromaticity.white_point.y);  (void) WriteBlob(image,(size_t) count,(unsigned char *) header);  length=CopyMagickString(header,"FORMAT=32-bit_rle_rgbe/n/n",MaxTextExtent);  (void) WriteBlob(image,length,(unsigned char *) header);  count=FormatLocaleString(header,MaxTextExtent,"-Y %.20g +X %.20g/n",    (double) image->rows,(double) image->columns);  (void) WriteBlob(image,(size_t) count,(unsigned char *) header);  /*    Write HDR pixels.  */  pixels=(unsigned char *) AcquireQuantumMemory(image->columns+128,4*    sizeof(*pixels));  if (pixels == (unsigned char *) NULL)    ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");  (void) ResetMagickMemory(pixels,0,4*(image->columns+128)*sizeof(*pixels));  for (y=0; y < (ssize_t) image->rows; y++)  {    p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception);    if (p == (const PixelPacket *) NULL)      break;    if ((image->columns >= 8) && (image->columns <= 0x7ffff))      {        pixel[0]=2;        pixel[1]=2;        pixel[2]=(unsigned char) (image->columns >> 8);        pixel[3]=(unsigned char) (image->columns & 0xff);        count=WriteBlob(image,4*sizeof(*pixel),pixel);        if (count != (ssize_t) (4*sizeof(*pixel)))          break;      }    i=0;    for (x=0; x < (ssize_t) image->columns; x++)    {      double        gamma;      pixel[0]=0;      pixel[1]=0;      pixel[2]=0;      pixel[3]=0;      gamma=QuantumScale*GetPixelRed(p);      if ((QuantumScale*GetPixelGreen(p)) > gamma)        gamma=QuantumScale*GetPixelGreen(p);      if ((QuantumScale*GetPixelBlue(p)) > gamma)        gamma=QuantumScale*GetPixelBlue(p);      if (gamma > MagickEpsilon)        {          int            exponent;          gamma=frexp(gamma,&exponent)*256.0/gamma;          pixel[0]=(unsigned char) (gamma*QuantumScale*GetPixelRed(p));          pixel[1]=(unsigned char) (gamma*QuantumScale*GetPixelGreen(p));          pixel[2]=(unsigned char) (gamma*QuantumScale*GetPixelBlue(p));          pixel[3]=(unsigned char) (exponent+128);        }      if ((image->columns >= 8) && (image->columns <= 0x7ffff))        {          pixels[x]=pixel[0];          pixels[x+image->columns]=pixel[1];          pixels[x+2*image->columns]=pixel[2];          pixels[x+3*image->columns]=pixel[3];        }      else        {          pixels[i++]=pixel[0];          pixels[i++]=pixel[1];          pixels[i++]=pixel[2];          pixels[i++]=pixel[3];        }      p++;    }    if ((image->columns >= 8) && (image->columns <= 0x7ffff))      {        for (i=0; i < 4; i++)          length=HDRWriteRunlengthPixels(image,&pixels[i*image->columns]);      }    else      {        count=WriteBlob(image,4*image->columns*sizeof(*pixels),pixels);        if (count != (ssize_t) (4*image->columns*sizeof(*pixels)))          break;      }    status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,      image->rows);    if (status == MagickFalse)      break;  }

static MagickBooleanType WritePCLImage(const ImageInfo *image_info,Image *image,  ExceptionInfo *exception){  char    buffer[MaxTextExtent];  const char    *option;  MagickBooleanType    status;  MagickOffsetType    scene;  register const Quantum *p;  register ssize_t i, x;  register unsigned char *q;  size_t    density,    length,    one,    packets;  ssize_t    y;  unsigned char    bits_per_pixel,    *compress_pixels,    *pixels,    *previous_pixels;  /*    Open output image file.  */  assert(image_info != (const ImageInfo *) NULL);  assert(image_info->signature == MagickSignature);  assert(image != (Image *) NULL);  assert(image->signature == MagickSignature);  if (image->debug != MagickFalse)    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);  assert(exception != (ExceptionInfo *) NULL);  assert(exception->signature == MagickSignature);  status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);  if (status == MagickFalse)    return(status);  density=75;  if (image_info->density != (char *) NULL)    {      GeometryInfo        geometry;      (void) ParseGeometry(image_info->density,&geometry);      density=(size_t) geometry.rho;    }  scene=0;  one=1;  do  {    if (IsRGBColorspace(image->colorspace) == MagickFalse)      (void) TransformImageColorspace(image,RGBColorspace,exception);    /*      Initialize the printer.    */    (void) WriteBlobString(image,"/033E");  /* printer reset */    (void) WriteBlobString(image,"/033*r3F");  /* set presentation mode */    (void) FormatLocaleString(buffer,MaxTextExtent,"/033*r%.20gs%.20gT",      (double) image->columns,(double) image->rows);    (void) WriteBlobString(image,buffer);    (void) FormatLocaleString(buffer,MaxTextExtent,"/033*t%.20gR",(double)      density);    (void) WriteBlobString(image,buffer);    (void) WriteBlobString(image,"/033&l0E");  /* top margin 0 */    if (IsImageMonochrome(image,exception) != MagickFalse)      {        /*          Monochrome image: use default printer monochrome setup.        */        bits_per_pixel=1;      }    else      if (image->storage_class == DirectClass)        {          /*            DirectClass image.          */          bits_per_pixel=24;          (void) WriteBlobString(image,"/033*v6W"); /* set color mode */          (void) WriteBlobByte(image,0); /* RGB */          (void) WriteBlobByte(image,3); /* direct by pixel */          (void) WriteBlobByte(image,0); /* bits per index (ignored) */          (void) WriteBlobByte(image,8); /* bits per red component */          (void) WriteBlobByte(image,8); /* bits per green component */          (void) WriteBlobByte(image,8); /* bits per blue component */        }      else//.........这里部分代码省略.........

/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%                                                                             %%                                                                             %%                                                                             %%   W r i t e H R Z I m a g e                                                 %%                                                                             %%                                                                             %%                                                                             %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%  WriteHRZImage() writes an image to a file in HRZ X image format.%%  The format of the WriteHRZImage method is:%%      MagickBooleanType WriteHRZImage(const ImageInfo *image_info,%        Image *image,ExceptionInfo *exception)%%  A description of each parameter follows.%%    o image_info: the image info.%%    o image:  The image.%%    o exception: return any errors or warnings in this structure.%*/static MagickBooleanType WriteHRZImage(const ImageInfo *image_info,Image *image,  ExceptionInfo *exception){  Image    *hrz_image;  MagickBooleanType    status;  register const Quantum    *p;  register ssize_t    x,    y;  register unsigned char    *q;  ssize_t    count;  unsigned char    *pixels;  /*    Open output image file.  */  assert(image_info != (const ImageInfo *) NULL);  assert(image_info->signature == MagickCoreSignature);  assert(image != (Image *) NULL);  assert(image->signature == MagickCoreSignature);  if (image->debug != MagickFalse)    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);  assert(exception != (ExceptionInfo *) NULL);  assert(exception->signature == MagickCoreSignature);  status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);  if (status == MagickFalse)    return(status);  hrz_image=ResizeImage(image,256,240,image->filter,exception);  if (hrz_image == (Image *) NULL)    return(MagickFalse);  (void) TransformImageColorspace(hrz_image,sRGBColorspace,exception);  /*    Allocate memory for pixels.  */  pixels=(unsigned char *) AcquireQuantumMemory((size_t) hrz_image->columns,    3*sizeof(*pixels));  if (pixels == (unsigned char *) NULL)    {      hrz_image=DestroyImage(hrz_image);      ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");    }  /*    Convert MIFF to HRZ raster pixels.  */  for (y=0; y < (ssize_t) hrz_image->rows; y++)  {    p=GetVirtualPixels(hrz_image,0,y,hrz_image->columns,1,exception);    if (p == (const Quantum *) NULL)      break;    q=pixels;    for (x=0; x < (ssize_t) hrz_image->columns; x++)    {      *q++=ScaleQuantumToChar(GetPixelRed(hrz_image,p)/4);      *q++=ScaleQuantumToChar(GetPixelGreen(hrz_image,p)/4);      *q++=ScaleQuantumToChar(GetPixelBlue(hrz_image,p)/4);      p+=GetPixelChannels(hrz_image);    }    count=WriteBlob(image,(size_t) (q-pixels),pixels);    if (count != (ssize_t) (q-pixels))      break;    status=SetImageProgress(image,SaveImageTag,y,hrz_image->rows);//.........这里部分代码省略.........

static MagickBooleanType ForwardFourierTransform(FourierInfo *fourier_info,  const Image *image,double *magnitude,double *phase,ExceptionInfo *exception){  CacheView    *image_view;  double    n,    *source;  fftw_complex    *fourier;  fftw_plan    fftw_r2c_plan;  register const IndexPacket    *indexes;  register const PixelPacket    *p;  register ssize_t    i,    x;  ssize_t    y;  /*    Generate the forward Fourier transform.  */  source=(double *) AcquireQuantumMemory((size_t) fourier_info->height,    fourier_info->width*sizeof(*source));  if (source == (double *) NULL)    {      (void) ThrowMagickException(exception,GetMagickModule(),        ResourceLimitError,"MemoryAllocationFailed","`%s'",image->filename);      return(MagickFalse);    }  ResetMagickMemory(source,0,fourier_info->height*fourier_info->width*    sizeof(*source));  i=0L;  image_view=AcquireVirtualCacheView(image,exception);  for (y=0L; y < (ssize_t) fourier_info->height; y++)  {    p=GetCacheViewVirtualPixels(image_view,0L,y,fourier_info->width,1UL,      exception);    if (p == (const PixelPacket *) NULL)      break;    indexes=GetCacheViewVirtualIndexQueue(image_view);    for (x=0L; x < (ssize_t) fourier_info->width; x++)    {      switch (fourier_info->channel)      {        case RedChannel:        default:        {          source[i]=QuantumScale*GetPixelRed(p);          break;        }        case GreenChannel:        {          source[i]=QuantumScale*GetPixelGreen(p);          break;        }        case BlueChannel:        {          source[i]=QuantumScale*GetPixelBlue(p);          break;        }        case OpacityChannel:        {          source[i]=QuantumScale*GetPixelOpacity(p);          break;        }        case IndexChannel:        {          source[i]=QuantumScale*GetPixelIndex(indexes+x);          break;        }        case GrayChannels:        {          source[i]=QuantumScale*GetPixelGray(p);          break;        }      }      i++;      p++;    }  }  image_view=DestroyCacheView(image_view);  fourier=(fftw_complex *) AcquireQuantumMemory((size_t) fourier_info->height,    fourier_info->center*sizeof(*fourier));  if (fourier == (fftw_complex *) NULL)    {      (void) ThrowMagickException(exception,GetMagickModule(),        ResourceLimitError,"MemoryAllocationFailed","`%s'",image->filename);      source=(double *) RelinquishMagickMemory(source);      return(MagickFalse);//.........这里部分代码省略.........

//.........这里部分代码省略.........    yuv_image=ResizeImage(image,width,height,TriangleFilter,1.0,      &image->exception);    if (yuv_image == (Image *) NULL)      ThrowWriterException(ResourceLimitError,image->exception.reason);    (void) TransformImageColorspace(yuv_image,YCbCrColorspace);    /*      Downsample image.    */    chroma_image=ResizeImage(image,width/horizontal_factor,      height/vertical_factor,TriangleFilter,1.0,&image->exception);    if (chroma_image == (Image *) NULL)      ThrowWriterException(ResourceLimitError,image->exception.reason);    (void) TransformImageColorspace(chroma_image,YCbCrColorspace);    if (interlace == NoInterlace)      {        /*          Write noninterlaced YUV.        */        for (y=0; y < (ssize_t) yuv_image->rows; y++)        {          p=GetVirtualPixels(yuv_image,0,y,yuv_image->columns,1,            &yuv_image->exception);          if (p == (const PixelPacket *) NULL)            break;          s=GetVirtualPixels(chroma_image,0,y,chroma_image->columns,1,            &chroma_image->exception);          if (s == (const PixelPacket *) NULL)            break;          for (x=0; x < (ssize_t) yuv_image->columns; x++)          {            if (quantum == 1)              {                (void) WriteBlobByte(image,ScaleQuantumToChar(                  GetPixelGreen(s)));                (void) WriteBlobByte(image,ScaleQuantumToChar(GetPixelRed(p)));                p++;                (void) WriteBlobByte(image,ScaleQuantumToChar(GetPixelBlue(s)));                (void) WriteBlobByte(image,ScaleQuantumToChar(GetPixelRed(p)));              }            else              {                (void) WriteBlobByte(image,ScaleQuantumToChar(                  GetPixelGreen(s)));                (void) WriteBlobShort(image,ScaleQuantumToShort(                  GetPixelRed(p)));                p++;                (void) WriteBlobByte(image,ScaleQuantumToChar(GetPixelBlue(s)));                (void) WriteBlobShort(image,ScaleQuantumToShort(                  GetPixelRed(p)));              }            p++;            s++;            x++;          }          if (image->previous == (Image *) NULL)            {              status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,                image->rows);              if (status == MagickFalse)                break;            }        }        yuv_image=DestroyImage(yuv_image);      }    else      {

//.........这里部分代码省略.........      {        status=MagickFalse;        continue;      }    for (x=0; x < (ssize_t) component_image->columns; x++)    {      ssize_t        id,        offset;      offset=y*image->columns+x;      status=GetMatrixElement(equivalences,offset,0,&id);      if (id == offset)        {          id=n++;          if (n > (ssize_t) MaxColormapSize)            break;          status=SetMatrixElement(equivalences,offset,0,&id);        }      else        {          status=GetMatrixElement(equivalences,id,0,&id);          status=SetMatrixElement(equivalences,offset,0,&id);        }      if (x < object[id].bounding_box.x)        object[id].bounding_box.x=x;      if (x > (ssize_t) object[id].bounding_box.width)        object[id].bounding_box.width=(size_t) x;      if (y < object[id].bounding_box.y)        object[id].bounding_box.y=y;      if (y > (ssize_t) object[id].bounding_box.height)        object[id].bounding_box.height=(size_t) y;      object[id].color.red+=GetPixelRed(image,p);      object[id].color.green+=GetPixelGreen(image,p);      object[id].color.blue+=GetPixelBlue(image,p);      object[id].color.black+=GetPixelBlack(image,p);      object[id].color.alpha+=GetPixelAlpha(image,p);      object[id].centroid.x+=x;      object[id].centroid.y+=y;      object[id].area++;      SetPixelIndex(component_image,(Quantum) id,q);      p+=GetPixelChannels(image);      q+=GetPixelChannels(component_image);    }    if (n > (ssize_t) MaxColormapSize)      break;    if (SyncCacheViewAuthenticPixels(component_view,exception) == MagickFalse)      status=MagickFalse;    if (image->progress_monitor != (MagickProgressMonitor) NULL)      {        MagickBooleanType          proceed;        proceed=SetImageProgress(image,ConnectedComponentsImageTag,progress++,          image->rows);        if (proceed == MagickFalse)          status=MagickFalse;      }  }  component_view=DestroyCacheView(component_view);  image_view=DestroyCacheView(image_view);  equivalences=DestroyMatrixInfo(equivalences);  if (n > (ssize_t) MaxColormapSize)    {      object=(CCObjectInfo *) RelinquishMagickMemory(object);      component_image=DestroyImage(component_image);

//.........这里部分代码省略.........          AppendImageFormat("V",image->filename);          status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);          if (status == MagickFalse)            {              image=DestroyImageList(image);              return((Image *) NULL);            }        }      for (y=0; y < (ssize_t) chroma_image->rows; y++)      {        (void) ReadBlob(image,(size_t) quantum*chroma_image->columns,scanline);        p=scanline;        q=GetAuthenticPixels(chroma_image,0,y,chroma_image->columns,1,          exception);        if (q == (PixelPacket *) NULL)          break;        for (x=0; x < (ssize_t) chroma_image->columns; x++)        {          if (quantum == 1)            SetPixelBlue(q,ScaleCharToQuantum(*p++));          else            {              SetPixelBlue(q,ScaleShortToQuantum(((*p) << 8) | *(p+1)));              p+=2;            }          q++;        }        if (SyncAuthenticPixels(chroma_image,exception) == MagickFalse)          break;      }    }    /*      Scale image.    */    resize_image=ResizeImage(chroma_image,image->columns,image->rows,      TriangleFilter,1.0,exception);    chroma_image=DestroyImage(chroma_image);    if (resize_image == (Image *) NULL)      ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");    for (y=0; y < (ssize_t) image->rows; y++)    {      q=GetAuthenticPixels(image,0,y,image->columns,1,exception);      chroma_pixels=GetVirtualPixels(resize_image,0,y,resize_image->columns,1,        &resize_image->exception);      if ((q == (PixelPacket *) NULL) ||          (chroma_pixels == (const PixelPacket *) NULL))        break;      for (x=0; x < (ssize_t) image->columns; x++)      {        SetPixelGreen(q,GetPixelGreen(chroma_pixels));        SetPixelBlue(q,GetPixelBlue(chroma_pixels));        chroma_pixels++;        q++;      }      if (SyncAuthenticPixels(image,exception) == MagickFalse)        break;    }    resize_image=DestroyImage(resize_image);    SetImageColorspace(image,YCbCrColorspace);    if (interlace == PartitionInterlace)      (void) CopyMagickString(image->filename,image_info->filename,        MaxTextExtent);    if (EOFBlob(image) != MagickFalse)      {        ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",          image->filename);        break;      }    /*      Proceed to next image.    */    if (image_info->number_scenes != 0)      if (image->scene >= (image_info->scene+image_info->number_scenes-1))        break;    if (interlace == NoInterlace)      count=ReadBlob(image,(size_t) (2*quantum*image->columns),scanline);    else      count=ReadBlob(image,(size_t) quantum*image->columns,scanline);    if (count != 0)      {        /*          Allocate next image structure.        */        AcquireNextImage(image_info,image);        if (GetNextImageInList(image) == (Image *) NULL)          {            image=DestroyImageList(image);            return((Image *) NULL);          }        image=SyncNextImageInList(image);        status=SetImageProgress(image,LoadImagesTag,TellBlob(image),          GetBlobSize(image));        if (status == MagickFalse)          break;      }  } while (count != 0);  scanline=(unsigned char *) RelinquishMagickMemory(scanline);  (void) CloseBlob(image);  return(GetFirstImageInList(image));}

/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%                                                                             %%                                                                             %%                                                                             %%   W r i t e M T V I m a g e                                                 %%                                                                             %%                                                                             %%                                                                             %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%  WriteMTVImage() writes an image to a file in red, green, and blue MTV%  rasterfile format.%%  The format of the WriteMTVImage method is:%%      MagickBooleanType WriteMTVImage(const ImageInfo *image_info,Image *image)%%  A description of each parameter follows.%%    o image_info: the image info.%%    o image:  The image.%*/static MagickBooleanType WriteMTVImage(const ImageInfo *image_info,Image *image){    char    buffer[MaxTextExtent];    MagickBooleanType    status;    MagickOffsetType    scene;    register const PixelPacket    *p;    register ssize_t    x;    register unsigned char    *q;    ssize_t    y;    unsigned char    *pixels;    /*      Open output image file.    */    assert(image_info != (const ImageInfo *) NULL);    assert(image_info->signature == MagickSignature);    assert(image != (Image *) NULL);    assert(image->signature == MagickSignature);    if (image->debug != MagickFalse)        (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);    status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception);    if (status == MagickFalse)        return(status);    scene=0;    do    {        /*          Allocate memory for pixels.        */        if (IssRGBCompatibleColorspace(image->colorspace) == MagickFalse)            (void) TransformImageColorspace(image,sRGBColorspace);        pixels=(unsigned char *) AcquireQuantumMemory((size_t) image->columns,                3UL*sizeof(*pixels));        if (pixels == (unsigned char *) NULL)            ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");        /*          Initialize raster file header.        */        (void) FormatLocaleString(buffer,MaxTextExtent,"%.20g %.20g/n",(double)                                  image->columns,(double) image->rows);        (void) WriteBlobString(image,buffer);        for (y=0; y < (ssize_t) image->rows; y++)        {            p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception);            if (p == (const PixelPacket *) NULL)                break;            q=pixels;            for (x=0; x < (ssize_t) image->columns; x++)            {                *q++=ScaleQuantumToChar(GetPixelRed(p));                *q++=ScaleQuantumToChar(GetPixelGreen(p));                *q++=ScaleQuantumToChar(GetPixelBlue(p));                p++;            }            (void) WriteBlob(image,(size_t) (q-pixels),pixels);            if (image->previous == (Image *) NULL)            {                status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,                                        image->rows);                if (status == MagickFalse)//.........这里部分代码省略.........

//.........这里部分代码省略.........              break;            }            case NoCompression:            {              /*                Dump uncompressed DirectColor packets.              */              Ascii85Initialize(image);              for (y=0; y < (ssize_t) image->rows; y++)              {                p=GetVirtualPixels(image,0,y,image->columns,1,                  &image->exception);                if (p == (const PixelPacket *) NULL)                  break;                indexes=GetVirtualIndexQueue(image);                for (x=0; x < (ssize_t) image->columns; x++)                {                  if ((image->matte != MagickFalse) &&                      (GetPixelOpacity(p) == (Quantum) TransparentOpacity))                    {                      Ascii85Encode(image,ScaleQuantumToChar((Quantum)                        QuantumRange));                      Ascii85Encode(image,ScaleQuantumToChar((Quantum)                        QuantumRange));                      Ascii85Encode(image,ScaleQuantumToChar((Quantum)                        QuantumRange));                    }                  else                    if (image->colorspace != CMYKColorspace)                      {                        Ascii85Encode(image,ScaleQuantumToChar(                          GetPixelRed(p)));                        Ascii85Encode(image,ScaleQuantumToChar(                          GetPixelGreen(p)));                        Ascii85Encode(image,ScaleQuantumToChar(                          GetPixelBlue(p)));                      }                    else                      {                        Ascii85Encode(image,ScaleQuantumToChar(                          GetPixelRed(p)));                        Ascii85Encode(image,ScaleQuantumToChar(                          GetPixelGreen(p)));                        Ascii85Encode(image,ScaleQuantumToChar(                          GetPixelBlue(p)));                        Ascii85Encode(image,ScaleQuantumToChar(                          GetPixelIndex(indexes+x)));                      }                  p++;                }                progress=SetImageProgress(image,SaveImageTag,(MagickOffsetType)                  y,image->rows);                if (progress == MagickFalse)                  break;              }              Ascii85Flush(image);              break;            }          }        }      else        {          /*            Dump number of colors and colormap.          */          (void) FormatLocaleString(buffer,MaxTextExtent,"%.20g %.20g/n1/n%d/n",

/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%                                                                             %%                                                                             %%                                                                             %%   I m a g e T o H B i t m a p                                               %%                                                                             %%                                                                             %%                                                                             %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%  ImageToHBITMAP() creates a Windows HBITMAP from an image.%%  The format of the ImageToHBITMAP method is:%%      HBITMAP ImageToHBITMAP(Image *image,Exceptioninfo *exception)%%  A description of each parameter follows:%%    o image: the image to convert.%*/MagickExport void *ImageToHBITMAP(Image *image,ExceptionInfo *exception){  BITMAP    bitmap;  HANDLE    bitmap_bitsH;  HBITMAP    bitmapH;  register ssize_t    x;  register const PixelPacket    *p;  register RGBQUAD    *q;  RGBQUAD    *bitmap_bits;  size_t    length;  ssize_t    y;  (void) ResetMagickMemory(&bitmap,0,sizeof(bitmap));  bitmap.bmType=0;  bitmap.bmWidth=(LONG) image->columns;  bitmap.bmHeight=(LONG) image->rows;  bitmap.bmWidthBytes=4*bitmap.bmWidth;  bitmap.bmPlanes=1;  bitmap.bmBitsPixel=32;  bitmap.bmBits=NULL;  length=bitmap.bmWidthBytes*bitmap.bmHeight;  bitmap_bitsH=(HANDLE) GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE,length);  if (bitmap_bitsH == NULL)    {      char        *message;      message=GetExceptionMessage(errno);      (void) ThrowMagickException(exception,GetMagickModule(),        ResourceLimitError,"MemoryAllocationFailed","`%s'",message);      message=DestroyString(message);      return(NULL);    }  bitmap_bits=(RGBQUAD *) GlobalLock((HGLOBAL) bitmap_bitsH);  q=bitmap_bits;  if (bitmap.bmBits == NULL)    bitmap.bmBits=bitmap_bits;  (void) SetImageColorspace(image,sRGBColorspace);  for (y=0; y < (ssize_t) image->rows; y++)  {    p=GetVirtualPixels(image,0,y,image->columns,1,exception);    if (p == (const PixelPacket *) NULL)      break;    for (x=0; x < (ssize_t) image->columns; x++)    {      q->rgbRed=ScaleQuantumToChar(GetPixelRed(p));      q->rgbGreen=ScaleQuantumToChar(GetPixelGreen(p));      q->rgbBlue=ScaleQuantumToChar(GetPixelBlue(p));      q->rgbReserved=0;      p++;      q++;    }  }  bitmap.bmBits=bitmap_bits;  bitmapH=CreateBitmapIndirect(&bitmap);  if (bitmapH == NULL)    {      char        *message;      message=GetExceptionMessage(errno);//.........这里部分代码省略.........

//.........这里部分代码省略.........    saturation_sum_x=0.0;    saturation_sum_x2=0.0;    saturation_sum_x3=0.0;    saturation_sum_x4=0.0;    saturation_mean=0.0;    saturation_standard_deviation=0.0;    saturation_kurtosis=0.0;    saturation_skewness=0.0;    area=0.0;    status=MagickTrue;    image_view=AcquireVirtualCacheView(image,exception);#if defined(MAGICKCORE_OPENMP_SUPPORT)    #pragma omp parallel for schedule(static,4) shared(status) /      magick_threads(image,image,image->rows,1)#endif    for (y=0; y < (ssize_t) image->rows; y++)    {      register const Quantum        *p;      register ssize_t        x;      if (status == MagickFalse)        continue;      p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception);      if (p == (const Quantum *) NULL)        {          status=MagickFalse;          continue;        }      for (x=0; x < (ssize_t) image->columns; x++)      {        ConvertRGBToHSL(GetPixelRed(image,p),GetPixelGreen(image,p),          GetPixelBlue(image,p),&hue,&saturation,&brightness);        brightness*=QuantumRange;        brightness_sum_x+=brightness;        brightness_sum_x2+=brightness*brightness;        brightness_sum_x3+=brightness*brightness*brightness;        brightness_sum_x4+=brightness*brightness*brightness*brightness;        saturation*=QuantumRange;        saturation_sum_x+=saturation;        saturation_sum_x2+=saturation*saturation;        saturation_sum_x3+=saturation*saturation*saturation;        saturation_sum_x4+=saturation*saturation*saturation*saturation;        area++;        p+=GetPixelChannels(image);      }    }    image_view=DestroyCacheView(image_view);    if (area <= 0.0)      break;    brightness_mean=brightness_sum_x/area;    (void) FormatLocaleString(text,MagickPathExtent,"%g",brightness_mean);    (void) SetImageProperty(image,"filter:brightness:mean",text,      exception);    brightness_standard_deviation=sqrt(brightness_sum_x2/area-(brightness_sum_x/      area*brightness_sum_x/area));    (void) FormatLocaleString(text,MagickPathExtent,"%g",      brightness_standard_deviation);    (void) SetImageProperty(image,"filter:brightness:standard-deviation",text,      exception);    if (fabs(brightness_standard_deviation) >= MagickEpsilon)      brightness_kurtosis=(brightness_sum_x4/area-4.0*brightness_mean*        brightness_sum_x3/area+6.0*brightness_mean*brightness_mean*        brightness_sum_x2/area-3.0*brightness_mean*brightness_mean*

/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%                                                                             %%                                                                             %%                                                                             %%   W r i t e A V S I m a g e                                                 %%                                                                             %%                                                                             %%                                                                             %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%  WriteAVSImage() writes an image to a file in AVS X image format.%%  The format of the WriteAVSImage method is:%%      MagickBooleanType WriteAVSImage(const ImageInfo *image_info,Image *image)%%  A description of each parameter follows.%%    o image_info: the image info.%%    o image:  The image.%*/static MagickBooleanType WriteAVSImage(const ImageInfo *image_info,Image *image){  MagickBooleanType    status;  MagickOffsetType    scene;  register const PixelPacket    *restrict p;  register ssize_t    x;  register unsigned char    *restrict q;  ssize_t    count,    y;  unsigned char    *pixels;  /*    Open output image file.  */  assert(image_info != (const ImageInfo *) NULL);  assert(image_info->signature == MagickSignature);  assert(image != (Image *) NULL);  assert(image->signature == MagickSignature);  if (image->debug != MagickFalse)    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);  status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception);  if (status == MagickFalse)    return(status);  scene=0;  do  {    /*      Write AVS header.    */    if (image->colorspace != RGBColorspace)      (void) TransformImageColorspace(image,RGBColorspace);    (void) WriteBlobMSBLong(image,(unsigned int) image->columns);    (void) WriteBlobMSBLong(image,(unsigned int) image->rows);    /*      Allocate memory for pixels.    */    pixels=(unsigned char *) AcquireQuantumMemory((size_t) image->columns,      4*sizeof(*pixels));    if (pixels == (unsigned char *) NULL)      ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");    /*      Convert MIFF to AVS raster pixels.    */    for (y=0; y < (ssize_t) image->rows; y++)    {      p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception);      if (p == (PixelPacket *) NULL)        break;      q=pixels;      for (x=0; x < (ssize_t) image->columns; x++)      {        *q++=ScaleQuantumToChar((Quantum) (QuantumRange-(image->matte !=          MagickFalse ? GetPixelOpacity(p) : OpaqueOpacity)));        *q++=ScaleQuantumToChar(GetPixelRed(p));        *q++=ScaleQuantumToChar(GetPixelGreen(p));        *q++=ScaleQuantumToChar(GetPixelBlue(p));        p++;      }      count=WriteBlob(image,(size_t) (q-pixels),pixels);      if (count != (ssize_t) (q-pixels))        break;      if (image->previous == (Image *) NULL)        {//.........这里部分代码省略.........

//.........这里部分代码省略.........      if (image->scene >= (image_info->scene+image_info->number_scenes-1))        break;    status=SetImageExtent(image,image->columns,image->rows);    if (status == MagickFalse)      {        InheritException(exception,&image->exception);        return(DestroyImageList(image));      }    if (scene == 0)      {        length=GetQuantumExtent(canvas_image,quantum_info,quantum_type);        pixels=(const unsigned char *) ReadBlobStream(image,length,          GetQuantumPixels(quantum_info),&count);      }    for (y=0; y < (ssize_t) image->extract_info.height; y++)    {      register const PixelPacket        *magick_restrict p;      register PixelPacket        *magick_restrict q;      register ssize_t        x;      if (count != (ssize_t) length)        {          ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",            image->filename);          break;        }      q=GetAuthenticPixels(canvas_image,0,0,canvas_image->columns,1,exception);      if (q == (PixelPacket *) NULL)        break;      length=ImportQuantumPixels(canvas_image,(CacheView *) NULL,quantum_info,        quantum_type,pixels,exception);      if (SyncAuthenticPixels(canvas_image,exception) == MagickFalse)        break;      if (((y-image->extract_info.y) >= 0) &&          ((y-image->extract_info.y) < (ssize_t) image->rows))        {          p=GetVirtualPixels(canvas_image,canvas_image->extract_info.x,0,            image->columns,1,exception);          q=QueueAuthenticPixels(image,0,y-image->extract_info.y,image->columns,            1,exception);          if ((p == (const PixelPacket *) NULL) || (q == (PixelPacket *) NULL))            break;          for (x=0; x < (ssize_t) image->columns; x++)          {            SetPixelRed(q,GetPixelRed(p));            SetPixelGreen(q,GetPixelGreen(p));            SetPixelBlue(q,GetPixelBlue(p));            p++;            q++;          }          if (SyncAuthenticPixels(image,exception) == MagickFalse)            break;        }      if (image->previous == (Image *) NULL)        {          status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y,            image->rows);          if (status == MagickFalse)            break;        }      pixels=(const unsigned char *) ReadBlobStream(image,length,        GetQuantumPixels(quantum_info),&count);    }    SetQuantumImageType(image,quantum_type);    /*      Proceed to next image.    */    if (image_info->number_scenes != 0)      if (image->scene >= (image_info->scene+image_info->number_scenes-1))        break;    if (count == (ssize_t) length)      {        /*          Allocate next image structure.        */        AcquireNextImage(image_info,image);        if (GetNextImageInList(image) == (Image *) NULL)          {            image=DestroyImageList(image);            return((Image *) NULL);          }        image=SyncNextImageInList(image);        status=SetImageProgress(image,LoadImagesTag,TellBlob(image),          GetBlobSize(image));        if (status == MagickFalse)          break;      }    scene++;  } while (count == (ssize_t) length);  quantum_info=DestroyQuantumInfo(quantum_info);  InheritException(&image->exception,&canvas_image->exception);  canvas_image=DestroyImage(canvas_image);  (void) CloseBlob(image);  return(GetFirstImageInList(image));}

/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%                                                                             %%                                                                             %%                                                                             %%   G e t I m a g e T o t a l I n k D e n s i t y                             %%                                                                             %%                                                                             %%                                                                             %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%  GetImageTotalInkDensity() returns the total ink density for a CMYK image.%  Total Ink Density (TID) is determined by adding the CMYK values in the%  darkest shadow area in an image.%%  The format of the GetImageTotalInkDensity method is:%%      double GetImageTotalInkDensity(const Image *image,%        ExceptionInfo *exception)%%  A description of each parameter follows:%%    o image: the image.%%    o exception: return any errors or warnings in this structure.%*/MagickExport double GetImageTotalInkDensity(Image *image,  ExceptionInfo *exception){  CacheView    *image_view;  double    total_ink_density;  MagickBooleanType    status;  ssize_t    y;  assert(image != (Image *) NULL);  if (image->debug != MagickFalse)    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");  assert(image->signature == MagickCoreSignature);  if (image->colorspace != CMYKColorspace)    {      (void) ThrowMagickException(exception,GetMagickModule(),ImageError,        "ColorSeparatedImageRequired","`%s'",image->filename);      return(0.0);    }  status=MagickTrue;  total_ink_density=0.0;  image_view=AcquireVirtualCacheView(image,exception);#if defined(MAGICKCORE_OPENMP_SUPPORT)  #pragma omp parallel for schedule(static,4) shared(status) /    magick_threads(image,image,image->rows,1)#endif  for (y=0; y < (ssize_t) image->rows; y++)  {    double      density;    register const Quantum      *p;    register ssize_t      x;    p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception);    if (p == (const Quantum *) NULL)      {        status=MagickFalse;        continue;      }    for (x=0; x < (ssize_t) image->columns; x++)    {      density=(double) GetPixelRed(image,p)+GetPixelGreen(image,p)+        GetPixelBlue(image,p)+GetPixelBlack(image,p);      if (density > total_ink_density)#if defined(MAGICKCORE_OPENMP_SUPPORT)        #pragma omp critical (MagickCore_GetImageTotalInkDensity)#endif        {          if (density > total_ink_density)            total_ink_density=density;        }      p+=GetPixelChannels(image);    }  }  image_view=DestroyCacheView(image_view);  if (status == MagickFalse)    total_ink_density=0.0;  return(total_ink_density);}

//.........这里部分代码省略.........      SetPixelInfoPixel(frame_image,&matte,q);      q+=GetPixelChannels(frame_image);    }    for (x=0; x < (ssize_t) frame_info->inner_bevel; x++)    {      SetPixelInfoPixel(frame_image,&shadow,q);      q+=GetPixelChannels(frame_image);    }    /*      Set frame interior to interior color.    */    if ((compose != CopyCompositeOp) && ((compose != OverCompositeOp) ||        (image->matte != MagickFalse)))      for (x=0; x < (ssize_t) image->columns; x++)      {        SetPixelInfoPixel(frame_image,&interior,q);        q+=GetPixelChannels(frame_image);      }    else      {        register const Quantum          *p;        p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception);        if (p == (const Quantum *) NULL)          {            status=MagickFalse;            continue;          }        for (x=0; x < (ssize_t) image->columns; x++)        {          if ((GetPixelRedTraits(image) & UpdatePixelTrait) != 0)            SetPixelRed(frame_image,GetPixelRed(image,p),q);          if ((GetPixelGreenTraits(image) & UpdatePixelTrait) != 0)            SetPixelGreen(frame_image,GetPixelGreen(image,p),q);          if ((GetPixelBlueTraits(image) & UpdatePixelTrait) != 0)            SetPixelBlue(frame_image,GetPixelBlue(image,p),q);          if ((GetPixelBlackTraits(image) & UpdatePixelTrait) != 0)            SetPixelBlack(frame_image,GetPixelBlack(image,p),q);          if ((GetPixelAlphaTraits(image) & UpdatePixelTrait) != 0)            SetPixelAlpha(frame_image,GetPixelAlpha(image,p),q);          p+=GetPixelChannels(image);          q+=GetPixelChannels(frame_image);        }      }    for (x=0; x < (ssize_t) frame_info->inner_bevel; x++)    {      SetPixelInfoPixel(frame_image,&highlight,q);      q+=GetPixelChannels(frame_image);    }    width=frame_info->width-frame_info->x-image->columns-bevel_width;    for (x=0; x < (ssize_t) width; x++)    {      SetPixelInfoPixel(frame_image,&matte,q);      q+=GetPixelChannels(frame_image);    }    for (x=0; x < (ssize_t) frame_info->outer_bevel; x++)    {      SetPixelInfoPixel(frame_image,&shadow,q);      q+=GetPixelChannels(frame_image);    }    if (SyncCacheViewAuthenticPixels(frame_view,exception) == MagickFalse)      status=MagickFalse;    if (image->progress_monitor != (MagickProgressMonitor) NULL)      {        MagickBooleanType