C++ GetVirtualPixels函数代码示例

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本文整理汇总了C++中GetVirtualPixels函数的典型用法代码示例。如果您正苦于以下问题：C++ GetVirtualPixels函数的具体用法？C++ GetVirtualPixels怎么用？C++ GetVirtualPixels使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。

在下文中一共展示了GetVirtualPixels函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: WriteDEBUGImage

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
%   W r i t e D E B U G I m a g e                                             %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  WriteDEBUGImage writes the image pixel values with 20 places of precision.
%
%  The format of the WriteDEBUGImage method is:
%
%      MagickBooleanType WriteDEBUGImage(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 WriteDEBUGImage(const ImageInfo *image_info,
  Image *image,ExceptionInfo *exception)
{
  char
    buffer[MagickPathExtent],
    colorspace[MagickPathExtent],
    tuple[MagickPathExtent];

  ssize_t
    y;

  MagickBooleanType
    status;

  MagickOffsetType
    scene;

  PixelInfo
    pixel;

  register const Quantum
    *p;

  register ssize_t
    x;

  /*
    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,WriteBlobMode,exception);
  if (status == MagickFalse)
    return(status);
  scene=0;
  do
  {
    (void) CopyMagickString(colorspace,CommandOptionToMnemonic(
      MagickColorspaceOptions,(ssize_t) image->colorspace),MagickPathExtent);
    LocaleLower(colorspace);
    image->depth=GetImageQuantumDepth(image,MagickTrue);
    if (image->alpha_trait != UndefinedPixelTrait)
      (void) ConcatenateMagickString(colorspace,"a",MagickPathExtent);
    (void) FormatLocaleString(buffer,MagickPathExtent,
      "# ImageMagick pixel debugging: %.20g,%.20g,%.20g,%s\n",(double)
      image->columns,(double) image->rows,(double) ((MagickOffsetType)
      GetQuantumRange(image->depth)),colorspace);
    (void) WriteBlobString(image,buffer);
    GetPixelInfo(image,&pixel);
    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++)
      {
        (void) FormatLocaleString(buffer,MagickPathExtent,"%.20g,%.20g: ",(double)
          x,(double) y);
        (void) WriteBlobString(image,buffer);
        GetPixelInfoPixel(image,p,&pixel);
        (void) FormatLocaleString(tuple,MagickPathExtent,"%.20g,%.20g,%.20g ",
          (double) pixel.red,(double) pixel.green,(double) pixel.blue);
        if (pixel.colorspace == CMYKColorspace)
          {
            char
              black[MagickPathExtent];

            (void) FormatLocaleString(black,MagickPathExtent,",%.20g ",
              (double) pixel.black);
//.........这里部分代码省略.........

开发者ID:edalquist，项目名称:ImageMagick，代码行数:101，代码来源:debug.c

示例2: WritePCLImage


//.........这里部分代码省略.........
        (void) FormatLocaleString(buffer,MagickPathExtent,"\033*b2M");
        (void) WriteBlobString(image,buffer);
        break;
      }
      default:
      {
        compress_pixels=(unsigned char *) AcquireQuantumMemory(3*length+256,
          sizeof(*compress_pixels));
        if (compress_pixels == (unsigned char *) NULL)
          {
            pixels=(unsigned char *) RelinquishMagickMemory(pixels);
            ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
          }
        (void) ResetMagickMemory(compress_pixels,0,(3*length+256)*
          sizeof(*compress_pixels));
        previous_pixels=(unsigned char *) AcquireQuantumMemory(length+1,
          sizeof(*previous_pixels));
        if (previous_pixels == (unsigned char *) NULL)
          {
            compress_pixels=(unsigned char *) RelinquishMagickMemory(
              compress_pixels);
            pixels=(unsigned char *) RelinquishMagickMemory(pixels);
            ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
          }
        (void) ResetMagickMemory(previous_pixels,0,(length+1)*
          sizeof(*previous_pixels));
        (void) FormatLocaleString(buffer,MagickPathExtent,"\033*b3M");
        (void) WriteBlobString(image,buffer);
        break;
      }
    }
    for (y=0; y < (ssize_t) image->rows; y++)
    {
      p=GetVirtualPixels(image,0,y,image->columns,1,exception);
      if (p == (const Quantum *) NULL)
        break;
      q=pixels;
      switch (bits_per_pixel)
      {
        case 1:
        {
          register unsigned char
            bit,
            byte;

          /*
            Monochrome image.
          */
          bit=0;
          byte=0;
          for (x=0; x < (ssize_t) image->columns; x++)
          {
            byte<<=1;
            if (GetPixelLuma(image,p) < (QuantumRange/2.0))
              byte|=0x01;
            bit++;
            if (bit == 8)
              {
                *q++=byte;
                bit=0;
                byte=0;
              }
            p+=GetPixelChannels(image);
          }
          if (bit != 0)
            *q++=byte << (8-bit);

开发者ID:278443820，项目名称:ImageMagick，代码行数:67，代码来源:pcl.c

示例3: ReadGRAYImage


//.........这里部分代码省略.........
    /*
      Read pixels to virtual canvas image then push to image.
    */
    if ((image_info->ping != MagickFalse) && (image_info->number_scenes != 0))
      if (image->scene >= (image_info->scene+image_info->number_scenes-1))
        break;
    status=SetImageExtent(image,image->columns,image->rows,exception);
    if (status == MagickFalse)
      return(DestroyImageList(image));
    SetImageColorspace(image,GRAYColorspace,exception);
    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 Quantum
        *magick_restrict p;

      register ssize_t
        x;

      register Quantum
        *magick_restrict q;

      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 == (Quantum *) 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 Quantum *) NULL) ||
              (q == (Quantum *) NULL))
            break;
          for (x=0; x < (ssize_t) image->columns; x++)
          {
            SetPixelGray(image,GetPixelGray(canvas_image,p),q);
            p+=GetPixelChannels(canvas_image);
            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;
        }
      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,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;
      }
    scene++;
  } while (count == (ssize_t) length);
  quantum_info=DestroyQuantumInfo(quantum_info);
  canvas_image=DestroyImage(canvas_image);
  (void) CloseBlob(image);
  return(GetFirstImageInList(image));
}

开发者ID:278443820，项目名称:ImageMagick，代码行数:101，代码来源:gray.c

示例4: ImageToHBITMAP

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
%   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 Quantum
    *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,exception);
  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++)
    {
      q->rgbRed=ScaleQuantumToChar(GetPixelRed(image,p));
      q->rgbGreen=ScaleQuantumToChar(GetPixelGreen(image,p));
      q->rgbBlue=ScaleQuantumToChar(GetPixelBlue(image,p));
      q->rgbReserved=0;
      p+=GetPixelChannels(image);
      q++;
    }
  }
  bitmap.bmBits=bitmap_bits;
  bitmapH=CreateBitmapIndirect(&bitmap);
  if (bitmapH == NULL)
    {
      char
        *message;

      message=GetExceptionMessage(errno);
//.........这里部分代码省略.........

开发者ID:vcgato29，项目名称:ImageMagick，代码行数:101，代码来源:nt-feature.c

示例5: WritePICONImage


//.........这里部分代码省略.........
          break;
        indexes=GetAuthenticIndexQueue(picon);
        for (x=0; x < (ssize_t) picon->columns; x++)
        {
          if (q->opacity == (Quantum) TransparentOpacity)
            SetPixelIndex(indexes+x,picon->colors);
          q++;
        }
        if (SyncAuthenticPixels(picon,exception) == MagickFalse)
          break;
      }
    }
  /*
    Compute the character per pixel.
  */
  characters_per_pixel=1;
  for (k=MaxCixels; (ssize_t) colors > k; k*=MaxCixels)
    characters_per_pixel++;
  /*
    XPM header.
  */
  (void) WriteBlobString(image,"/* XPM */\n");
  GetPathComponent(picon->filename,BasePath,basename);
  (void) FormatLocaleString(buffer,MaxTextExtent,
    "static char *%s[] = {\n",basename);
  (void) WriteBlobString(image,buffer);
  (void) WriteBlobString(image,"/* columns rows colors chars-per-pixel */\n");
  (void) FormatLocaleString(buffer,MaxTextExtent,
    "\"%.20g %.20g %.20g %.20g\",\n",(double) picon->columns,(double)
    picon->rows,(double) colors,(double) characters_per_pixel);
  (void) WriteBlobString(image,buffer);
  GetMagickPixelPacket(image,&pixel);
  for (i=0; i < (ssize_t) colors; i++)
  {
    /*
      Define XPM color.
    */
    SetMagickPixelPacket(image,picon->colormap+i,(IndexPacket *) NULL,&pixel);
    pixel.colorspace=sRGBColorspace;
    pixel.depth=8;
    pixel.opacity=(MagickRealType) OpaqueOpacity;
    (void) QueryMagickColorname(image,&pixel,XPMCompliance,name,
      &image->exception);
    if (transparent != MagickFalse)
      {
        if (i == (ssize_t) (colors-1))
          (void) CopyMagickString(name,"grey75",MaxTextExtent);
      }
    /*
      Write XPM color.
    */
    k=i % MaxCixels;
    symbol[0]=Cixel[k];
    for (j=1; j < (ssize_t) characters_per_pixel; j++)
    {
      k=((i-k)/MaxCixels) % MaxCixels;
      symbol[j]=Cixel[k];
    }
    symbol[j]='\0';
    (void) FormatLocaleString(buffer,MaxTextExtent,"\"%s c %s\",\n",
       symbol,name);
    (void) WriteBlobString(image,buffer);
  }
  /*
    Define XPM pixels.
  */
  (void) WriteBlobString(image,"/* pixels */\n");
  for (y=0; y < (ssize_t) picon->rows; y++)
  {
    p=GetVirtualPixels(picon,0,y,picon->columns,1,&picon->exception);
    if (p == (const PixelPacket *) NULL)
      break;
    indexes=GetVirtualIndexQueue(picon);
    (void) WriteBlobString(image,"\"");
    for (x=0; x < (ssize_t) picon->columns; x++)
    {
      k=((ssize_t) GetPixelIndex(indexes+x) % MaxCixels);
      symbol[0]=Cixel[k];
      for (j=1; j < (ssize_t) characters_per_pixel; j++)
      {
        k=(((int) GetPixelIndex(indexes+x)-k)/MaxCixels) % MaxCixels;
        symbol[j]=Cixel[k];
      }
      symbol[j]='\0';
      (void) CopyMagickString(buffer,symbol,MaxTextExtent);
      (void) WriteBlobString(image,buffer);
    }
    (void) FormatLocaleString(buffer,MaxTextExtent,"\"%s\n",
      y == (ssize_t) (picon->rows-1) ? "" : ",");
    (void) WriteBlobString(image,buffer);
    status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
      picon->rows);
    if (status == MagickFalse)
      break;
  }
  picon=DestroyImage(picon);
  (void) WriteBlobString(image,"};\n");
  (void) CloseBlob(image);
  return(MagickTrue);
}

开发者ID:mhorowitzgelb，项目名称:AprilTags，代码行数:101，代码来源:xpm.c

示例6: WriteJBIGImage

static MagickBooleanType WriteJBIGImage(const ImageInfo *image_info,
  Image *image)
{
  double
    version;

  long
    y;

  MagickBooleanType
    status;

  MagickOffsetType
    scene;

  register const IndexPacket
    *indexes;

  register const PixelPacket
    *p;

  register long
    x;

  register unsigned char
    *q;

  struct jbg_enc_state
    jbig_info;

  unsigned char
    bit,
    byte,
    *pixels;

  unsigned long
    number_packets;

  /*
    Open 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);
  version=strtod(JBG_VERSION,(char **) NULL);
  scene=0;
  do
  {
    /*
      Allocate pixel data.
    */
    if (image->colorspace != RGBColorspace)
      (void) TransformImageColorspace(image,RGBColorspace);
    number_packets=(image->columns+7)/8;
    pixels=(unsigned char *) AcquireQuantumMemory(number_packets,
      image->rows*sizeof(*pixels));
    if (pixels == (unsigned char *) NULL)
      ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
    /*
      Convert pixels to a bitmap.
    */
    (void) SetImageType(image,BilevelType);
    q=pixels;
    for (y=0; y < (long) image->rows; y++)
    {
      p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception);
      if (p == (const PixelPacket *) NULL)
        break;
      indexes=GetVirtualIndexQueue(image);
      bit=0;
      byte=0;
      for (x=0; x < (long) image->columns; x++)
      {
        byte<<=1;
        if (PixelIntensity(p) < (QuantumRange/2.0))
          byte|=0x01;
        bit++;
        if (bit == 8)
          {
            *q++=byte;
            bit=0;
            byte=0;
          }
        p++;
      }
      if (bit != 0)
        *q++=byte << (8-bit);
      if (image->previous == (Image *) NULL)
        {
          status=SetImageProgress(image,SaveImageTag,y,image->rows);
          if (status == MagickFalse)
            break;
        }
    }
//.........这里部分代码省略.........

开发者ID:0xPr0xy，项目名称:ImageMagick，代码行数:101，代码来源:jbig.c

示例7: WriteJP2Image


//.........这里部分代码省略.........
      jas_image_setcmpttype(jp2_image,2,
        JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_B));
      if (number_components == 4)
        jas_image_setcmpttype(jp2_image,3,JAS_IMAGE_CT_OPACITY);
    }
  /*
    Convert to JPEG 2000 pixels.
  */
  for (i=0; i < (long) 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((unsigned long) component_info[0].prec);
  map=(unsigned short *) AcquireQuantumMemory(MaxMap+1,sizeof(*map));
  for (i=0; i <= (long) MaxMap; i++)
    map[i]=(unsigned short) ScaleQuantumToMap((Quantum)
      ScaleQuantumToAny((Quantum) i,range));
  if (map == (unsigned short *) NULL)
    {
      for (i=0; i < (long) number_components; i++)
        jas_matrix_destroy(pixels[i]);
      jas_image_destroy(jp2_image);
      ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
    }
  for (y=0; y < (long) image->rows; y++)
  {
    p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception);
    if (p == (const PixelPacket *) NULL)
      break;
    for (x=0; x < (long) image->columns; x++)
    {
      if (number_components == 1)
        jas_matrix_setv(pixels[0],x,map[ScaleQuantumToMap(
          PixelIntensityToQuantum(p))]);
      else
        {
          jas_matrix_setv(pixels[0],x,map[ScaleQuantumToMap(p->red)]);
          jas_matrix_setv(pixels[1],x,map[ScaleQuantumToMap(p->green)]);
          jas_matrix_setv(pixels[2],x,map[ScaleQuantumToMap(p->blue)]);
          if (number_components > 3)
            jas_matrix_setv(pixels[3],x,map[ScaleQuantumToMap((Quantum)
              (QuantumRange-p->opacity))]);
        }
      p++;
    }
    for (i=0; i < (long) 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,y,image->rows);
    if (status == MagickFalse)
      break;
  }
  map=(unsigned short *) RelinquishMagickMemory(map);
  (void) CopyMagickString(magick,image_info->magick,MaxTextExtent);
  LocaleLower(magick);
  format=jas_image_strtofmt(magick);
  options=(char *) NULL;
  ResetImageOptionIterator(image_info);
  key=GetNextImageOption(image_info);

开发者ID:0xPr0xy，项目名称:ImageMagick，代码行数:67，代码来源:jp2.c

示例8: WriteJP2Image


//.........这里部分代码省略.........
    {
      /*
        Unknow.
      */
      jas_image_setclrspc(jp2_image,JAS_CLRSPC_UNKNOWN);
      jas_image_setcmpttype(jp2_image,0,(jas_image_cmpttype_t)
        JAS_IMAGE_CT_COLOR(0));
      jas_image_setcmpttype(jp2_image,1,(jas_image_cmpttype_t)
        JAS_IMAGE_CT_COLOR(1));
      jas_image_setcmpttype(jp2_image,2,(jas_image_cmpttype_t)
        JAS_IMAGE_CT_COLOR(2));
      if (number_components == 4)
        jas_image_setcmpttype(jp2_image,3,JAS_IMAGE_CT_OPACITY);
      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(
          ClampToQuantum(GetPixelLuma(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);

开发者ID:epu，项目名称:ImageMagick，代码行数:67，代码来源:jp2.c

示例9: WriteIPLImage


//.........这里部分代码省略.........
  /* Ok!  Calculations are done.  Lets write this puppy down! */
  
  /*
    Write IPL header.
  */
  /* Shockingly (maybe not if you have used IPLab),  IPLab itself CANNOT read MSBEndian
  files!   The reader above can, but they cannot.  For compatability reasons, I will leave
  the code in here, but it is all but useless if you want to use IPLab. */

  if(image_info->endian == MSBEndian)
    (void) WriteBlob(image, 4, (const unsigned char *) "mmmm");
  else{
    image->endian = LSBEndian;
    (void) WriteBlob(image, 4, (const unsigned char *) "iiii");
  }
  (void) WriteBlobLong(image, 4);
  (void) WriteBlob(image, 4, (const unsigned char *) "100f");
  (void) WriteBlob(image, 4, (const unsigned char *) "data");
  (void) WriteBlobLong(image, ipl_info.size);
  (void) WriteBlobLong(image, ipl_info.width); 
  (void) WriteBlobLong(image, ipl_info.height);
  (void) WriteBlobLong(image, ipl_info.colors);
  if(image_info->adjoin == MagickFalse)
  (void) WriteBlobLong(image, 1);
  else
  (void) WriteBlobLong(image, ipl_info.z);
  (void) WriteBlobLong(image, ipl_info.time);
  (void) WriteBlobLong(image, ipl_info.byteType);
  
  do
    {
      /*
  Convert MIFF to IPL raster pixels.
      */
      pixels=(unsigned char *) GetQuantumPixels(quantum_info);
  if(ipl_info.colors == 1){
  /* Red frame */
  for(y = 0; y < (ssize_t) ipl_info.height; y++){
    p=GetVirtualPixels(image,0,y,image->columns,1,exception);
    if (p == (const Quantum *) NULL)
      break;
      (void) ExportQuantumPixels(image,(CacheView *) NULL, quantum_info,
        GrayQuantum, pixels,exception);
      (void) WriteBlob(image, image->columns*image->depth/8, pixels);
  }

}
  if(ipl_info.colors == 3){
  /* Red frame */
  for(y = 0; y < (ssize_t) ipl_info.height; y++){
    p=GetVirtualPixels(image,0,y,image->columns,1,exception);
    if (p == (const Quantum *) NULL)
      break;
      (void) ExportQuantumPixels(image,(CacheView *) NULL, quantum_info,
        RedQuantum, pixels,exception);
      (void) WriteBlob(image, image->columns*image->depth/8, pixels);
  }

    /* Green frame */
    for(y = 0; y < (ssize_t) ipl_info.height; y++){
      p=GetVirtualPixels(image,0,y,image->columns,1,exception);
      if (p == (const Quantum *) NULL)
        break;
        (void) ExportQuantumPixels(image,(CacheView *) NULL, quantum_info,
          GreenQuantum, pixels,exception);
        (void) WriteBlob(image, image->columns*image->depth/8, pixels);
    }
    /* Blue frame */
    for(y = 0; y < (ssize_t) ipl_info.height; y++){
      p=GetVirtualPixels(image,0,y,image->columns,1,exception);
      if (p == (const Quantum *) NULL)
        break;
      (void) ExportQuantumPixels(image,(CacheView *) NULL, quantum_info,
        BlueQuantum, pixels,exception);
      (void) WriteBlob(image, image->columns*image->depth/8, pixels);
      if (image->previous == (Image *) NULL)
        {
          status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
                image->rows);
          if (status == MagickFalse)
            break;
        }
    }
  }
  quantum_info=DestroyQuantumInfo(quantum_info);
      if (GetNextImageInList(image) == (Image *) NULL)
  break;
      image=SyncNextImageInList(image);
      status=SetImageProgress(image,SaveImagesTag,scene++,
        GetImageListLength(image));
      if (status == MagickFalse)
        break;
    }while (image_info->adjoin != MagickFalse);

  (void) WriteBlob(image, 4, (const unsigned char *) "fini");
  (void) WriteBlobLong(image, 0);

CloseBlob(image);
return(MagickTrue);
}

开发者ID:278443820，项目名称:ImageMagick，代码行数:101，代码来源:ipl.c

示例10: IdentifyImage


//.........这里部分代码省略.........
          if (image->total_colors != 0)
            {
              (void) FormatMagickSize(image->total_colors,MagickFalse,format);
              (void) fprintf(file,"%s ",format);
            }
        }
      else
        if (image->total_colors <= image->colors)
          (void) fprintf(file,"PseudoClass %.20gc ",(double) image->colors);
        else
          (void) fprintf(file,"PseudoClass %.20g=>%.20gc ",(double)
            image->total_colors,(double) image->colors);
      if (image->error.mean_error_per_pixel != 0.0)
        (void) fprintf(file,"%.20g/%f/%fdb ",(double)
          (image->error.mean_error_per_pixel+0.5),
          image->error.normalized_mean_error,
          image->error.normalized_maximum_error);
      if (GetBlobSize(image) != 0)
        {
          (void) FormatMagickSize(GetBlobSize(image),MagickFalse,format);
          (void) fprintf(file,"%sB ",format);
        }
      (void) fprintf(file,"%0.3fu %lu:%02lu.%03lu",user_time,(unsigned long)
        (elapsed_time/60.0),(unsigned long) floor(fmod(elapsed_time,60.0)),
        (unsigned long) (1000.0*(elapsed_time-floor(elapsed_time))));
      (void) fprintf(file,"\n");
      (void) fflush(file);
      return(ferror(file) != 0 ? MagickFalse : MagickTrue);
    }
  /*
    Display verbose info about the image.
  */
  exception=AcquireExceptionInfo();
  pixels=GetVirtualPixels(image,0,0,1,1,exception);
  exception=DestroyExceptionInfo(exception);
  ping=pixels == (const PixelPacket *) NULL ? MagickTrue : MagickFalse;
  type=GetImageType(image,&image->exception);
  (void) SignatureImage(image);
  (void) fprintf(file,"Image: %s\n",image->filename);
  if (*image->magick_filename != '\0')
    if (LocaleCompare(image->magick_filename,image->filename) != 0)
      {
        char
          filename[MaxTextExtent];

        GetPathComponent(image->magick_filename,TailPath,filename);
        (void) fprintf(file,"  Base filename: %s\n",filename);
      }
  magick_info=GetMagickInfo(image->magick,&image->exception);
  if ((magick_info == (const MagickInfo *) NULL) ||
      (*GetMagickDescription(magick_info) == '\0'))
    (void) fprintf(file,"  Format: %s\n",image->magick);
  else
    (void) fprintf(file,"  Format: %s (%s)\n",image->magick,
      GetMagickDescription(magick_info));
  (void) fprintf(file,"  Class: %s\n",MagickOptionToMnemonic(MagickClassOptions,
    (ssize_t) image->storage_class));
  (void) fprintf(file,"  Geometry: %.20gx%.20g%+.20g%+.20g\n",(double)
    image->columns,(double) image->rows,(double) image->tile_offset.x,(double)
    image->tile_offset.y);
  if ((image->magick_columns != 0) || (image->magick_rows != 0))
    if ((image->magick_columns != image->columns) ||
        (image->magick_rows != image->rows))
      (void) fprintf(file,"  Base geometry: %.20gx%.20g\n",(double)
        image->magick_columns,(double) image->magick_rows);
  if ((image->x_resolution != 0.0) && (image->y_resolution != 0.0))

开发者ID:JasonGross，项目名称:characters，代码行数:67，代码来源:identify.c

示例11: WriteTXTImage

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
%   W r i t e T X T I m a g e                                                 %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  WriteTXTImage writes the pixel values as text numbers.
%
%  The format of the WriteTXTImage method is:
%
%      MagickBooleanType WriteTXTImage(const ImageInfo *image_info,Image *image)
%
%  A description of each parameter follows.
%
%    o image_info: the image info.
%
%    o image:  The image.
%
*/
static MagickBooleanType WriteTXTImage(const ImageInfo *image_info,Image *image)
{
  char
    buffer[MaxTextExtent],
    colorspace[MaxTextExtent],
    tuple[MaxTextExtent];

  MagickBooleanType
    status;

  MagickOffsetType
    scene;

  MagickPixelPacket
    pixel;

  register const IndexPacket
    *indexes;

  register const PixelPacket
    *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);
  status=OpenBlob(image_info,image,WriteBlobMode,&image->exception);
  if (status == MagickFalse)
    return(status);
  scene=0;
  do
  {
    ComplianceType
      compliance;

    const char
      *value;

    (void) CopyMagickString(colorspace,CommandOptionToMnemonic(
      MagickColorspaceOptions,(ssize_t) image->colorspace),MaxTextExtent);
    LocaleLower(colorspace);
    image->depth=GetImageQuantumDepth(image,MagickTrue);
    if (image->matte != MagickFalse)
      (void) ConcatenateMagickString(colorspace,"a",MaxTextExtent);
    compliance=NoCompliance;
    value=GetImageOption(image_info,"txt:compliance");
    if (value != (char *) NULL)
      compliance=(ComplianceType) ParseCommandOption(MagickComplianceOptions,
        MagickFalse,value);
    if (LocaleCompare(image_info->magick,"SPARSE-COLOR") != 0)
      {
        (void) FormatLocaleString(buffer,MaxTextExtent,
          "# ImageMagick pixel enumeration: %.20g,%.20g,%.20g,%s\n",(double)
          image->columns,(double) image->rows,(double) ((MagickOffsetType)
          GetQuantumRange(image->depth)),colorspace);
        (void) WriteBlobString(image,buffer);
      }
    GetMagickPixelPacket(image,&pixel);
    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++)
//.........这里部分代码省略.........

开发者ID:mhorowitzgelb，项目名称:AprilTags，代码行数:101，代码来源:txt.c

示例12: WriteSGIImage


//.........这里部分代码省略.........
    (void) WriteBlobByte(image,iris_info.storage);
    (void) WriteBlobByte(image,iris_info.bytes_per_pixel);
    (void) WriteBlobMSBShort(image,iris_info.dimension);
    (void) WriteBlobMSBShort(image,iris_info.columns);
    (void) WriteBlobMSBShort(image,iris_info.rows);
    (void) WriteBlobMSBShort(image,iris_info.depth);
    (void) WriteBlobMSBLong(image,(unsigned int) iris_info.minimum_value);
    (void) WriteBlobMSBLong(image,(unsigned int) iris_info.maximum_value);
    (void) WriteBlobMSBLong(image,(unsigned int) iris_info.sans);
    value=GetImageProperty(image,"label");
    if (value != (const char *) NULL)
      (void) CopyMagickString(iris_info.name,value,sizeof(iris_info.name));
    (void) WriteBlob(image,sizeof(iris_info.name),(unsigned char *)
      iris_info.name);
    (void) WriteBlobMSBLong(image,(unsigned int) iris_info.pixel_format);
    (void) WriteBlob(image,sizeof(iris_info.filler),iris_info.filler);
    /*
      Allocate SGI pixels.
    */
    number_pixels=(MagickSizeType) image->columns*image->rows;
    if ((4*iris_info.bytes_per_pixel*number_pixels) !=
        ((MagickSizeType) (size_t) (4*iris_info.bytes_per_pixel*number_pixels)))
      ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
    pixel_info=AcquireVirtualMemory((size_t) number_pixels,4*
      iris_info.bytes_per_pixel*sizeof(*pixels));
    if (pixel_info == (MemoryInfo *) NULL)
      ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
    pixels=(unsigned char *) GetVirtualMemoryBlob(pixel_info);
    /*
      Convert image pixels to uncompressed SGI 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->depth <= 8)
        for (x=0; x < (ssize_t) image->columns; x++)
        {
          register unsigned char
            *q;

          q=(unsigned char *) pixels;
          q+=((iris_info.rows-1)-y)*(4*iris_info.columns)+4*x;
          *q++=ScaleQuantumToChar(GetPixelRed(p));
          *q++=ScaleQuantumToChar(GetPixelGreen(p));
          *q++=ScaleQuantumToChar(GetPixelBlue(p));
          *q++=ScaleQuantumToChar(GetPixelAlpha(p));
          p++;
        }
      else
        for (x=0; x < (ssize_t) image->columns; x++)
        {
          register unsigned short
            *q;

          q=(unsigned short *) pixels;
          q+=((iris_info.rows-1)-y)*(4*iris_info.columns)+4*x;
          *q++=ScaleQuantumToShort(GetPixelRed(p));
          *q++=ScaleQuantumToShort(GetPixelGreen(p));
          *q++=ScaleQuantumToShort(GetPixelBlue(p));
          *q++=ScaleQuantumToShort(GetPixelAlpha(p));
          p++;
        }
      if (image->previous == (Image *) NULL)
        {

开发者ID:UIKit0，项目名称:YoyaMagick，代码行数:67，代码来源:sgi.c

示例13: WriteWBMPImage

static MagickBooleanType WriteWBMPImage(const ImageInfo *image_info,
  Image *image,ExceptionInfo *exception)
{
  MagickBooleanType
    status;

  register const Quantum
    *p;

  register ssize_t
    x;

  ssize_t
    y;

  unsigned char
    bit,
    byte;

  /*
    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);
  if (IssRGBCompatibleColorspace(image->colorspace) == MagickFalse)
    (void) TransformImageColorspace(image,sRGBColorspace,exception);
  /*
    Convert image to a bi-level image.
  */
  (void) SetImageType(image,BilevelType,exception);
  (void) WriteBlobMSBShort(image,0);
  WBMPWriteInteger(image,image->columns);
  WBMPWriteInteger(image,image->rows);
  for (y=0; y < (ssize_t) image->rows; y++)
  {
    p=GetVirtualPixels(image,0,y,image->columns,1,exception);
    if (p == (const Quantum *) NULL)
      break;
    bit=0;
    byte=0;
    for (x=0; x < (ssize_t) image->columns; x++)
    {
      if (GetPixelLuma(image,p) >= (QuantumRange/2.0))
        byte|=0x1 << (7-bit);
      bit++;
      if (bit == 8)
        {
          (void) WriteBlobByte(image,byte);
          bit=0;
          byte=0;
        }
      p+=GetPixelChannels(image);
    }
    if (bit != 0)
      (void) WriteBlobByte(image,byte);
    status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
      image->rows);
    if (status == MagickFalse)
      break;
  }
  (void) CloseBlob(image);
  return(MagickTrue);
}

开发者ID:Distrotech，项目名称:ImageMagick，代码行数:72，代码来源:wbmp.c

示例14: WriteAVSImage

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
%   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 (IssRGBCompatibleColorspace(image->colorspace) == MagickFalse)
      (void) TransformImageColorspace(image,sRGBColorspace);
    (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.........

开发者ID:0xPr0xy，项目名称:ImageMagick，代码行数:101，代码来源:avs.c

示例15: WriteHDRImage

static MagickBooleanType WriteHDRImage(const ImageInfo *image_info,Image *image,
  ExceptionInfo *exception)
{
  char
    header[MaxTextExtent];

  const char
    *property;

  MagickBooleanType
    status;

  register const Quantum
    *p;

  register ssize_t
    i,
    x;

  size_t
    length;

  ssize_t
    count,
    y;

  unsigned char
    pixel[4],
    *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);
  if (IsRGBColorspace(image->colorspace) == MagickFalse)
    (void) TransformImageColorspace(image,RGBColorspace,exception);
  /*
    Write header.
  */
  (void) ResetMagickMemory(header,' ',MaxTextExtent);
  length=CopyMagickString(header,"#?RGBE\n",MaxTextExtent);
  (void) WriteBlob(image,length,(unsigned char *) header);
  property=GetImageProperty(image,"comment",exception);
  if ((property != (const char *) NULL) &&
      (strchr(property,'\n') == (char *) NULL))
    {
      count=FormatLocaleString(header,MaxTextExtent,"#%s\n",property);
      (void) WriteBlob(image,(size_t

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C++ GetVirtualPixels函数代码示例

示例1: WriteDEBUGImage

示例2: WritePCLImage

示例3: ReadGRAYImage

示例4: ImageToHBITMAP

示例5: WritePICONImage

示例6: WriteJBIGImage

示例7: WriteJP2Image

示例8: WriteJP2Image

示例9: WriteIPLImage

示例10: IdentifyImage

示例11: WriteTXTImage

示例12: WriteSGIImage

示例13: WriteWBMPImage

示例14: WriteAVSImage

示例15: WriteHDRImage

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