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/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% K K EEEEE RRRR N N EEEEE L %
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% K K E R R NN N E L %
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% KKK EEE RRRR N N N EEE L %
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% K K E R R N NN E L %
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% K K EEEEE R R N N EEEEE LLLLL %
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% %
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% %
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% Write the Morphology Kernel Format %
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% %
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% Software Design %
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% Cristy %
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% October 2020 %
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% %
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% %
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% Copyright 1999-2021 ImageMagick Studio LLC, a non-profit organization %
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% dedicated to making software imaging solutions freely available. %
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% %
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% You may not use this file except in compliance with the License. You may %
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% obtain a copy of the License at %
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% %
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% https://imagemagick.org/script/license.php %
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% %
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% Unless required by applicable law or agreed to in writing, software %
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% distributed under the License is distributed on an "AS IS" BASIS, %
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% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %
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% See the License for the specific language governing permissions and %
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% limitations under the License. %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% Adapted from http://im.snibgo.com/customim.htm#img2knl.c.
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%
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*/
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/*
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Include declarations.
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*/
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#include "MagickCore/studio.h"
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#include "MagickCore/blob.h"
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#include "MagickCore/blob-private.h"
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#include "MagickCore/cache.h"
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#include "MagickCore/colorspace.h"
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#include "MagickCore/colorspace-private.h"
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#include "MagickCore/exception.h"
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#include "MagickCore/exception-private.h"
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#include "MagickCore/image.h"
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#include "MagickCore/image-private.h"
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#include "MagickCore/list.h"
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#include "MagickCore/magick.h"
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#include "MagickCore/memory_.h"
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#include "MagickCore/monitor.h"
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#include "MagickCore/monitor-private.h"
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#include "MagickCore/pixel-accessor.h"
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#include "MagickCore/quantum-private.h"
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#include "MagickCore/static.h"
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#include "MagickCore/string_.h"
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#include "MagickCore/module.h"
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/*
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Forward declarations.
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*/
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static MagickBooleanType
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WriteKERNELImage(const ImageInfo *,Image *,ExceptionInfo *);
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/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% R e g i s t e r K E R N E L I m a g e %
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% %
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% %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% RegisterKERNELImage() adds attributes for the KERNEL image format to the
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% list of supported formats. The attributes include the image format tag, a
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% method to read and/or write the format, whether the format supports the
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% saving of more than one frame to the same file or blob, whether the format
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% supports native in-memory I/O, and a brief description of the format.
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%
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% The format of the RegisterKERNELImage method is:
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%
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% size_t RegisterKERNELImage(void)
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%
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*/
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ModuleExport size_t RegisterKERNELImage(void)
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{
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MagickInfo
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*entry;
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entry=AcquireMagickInfo("KERNEL","KERNEL","Morphology Kernel");
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entry->encoder=(EncodeImageHandler *) WriteKERNELImage;
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entry->flags^=CoderAdjoinFlag;
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(void) RegisterMagickInfo(entry);
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return(MagickImageCoderSignature);
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}
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/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% U n r e g i s t e r K E R N E L I m a g e %
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% %
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% %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% UnregisterKERNELImage() removes format registrations made by the
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% KERNEL module from the list of supported formats.
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%
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% The format of the UnregisterKERNELImage method is:
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%
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% UnregisterKERNELImage(void)
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%
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*/
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ModuleExport void UnregisterKERNELImage(void)
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{
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(void) UnregisterMagickInfo("KERNEL");
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}
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/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% W r i t e K E R N E L I m a g e %
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% %
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% %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% WriteKERNELImage() writes an image to a file in KERNEL image format.
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%
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% The format of the WriteKERNELImage method is:
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%
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% MagickBooleanType WriteKERNELImage(const ImageInfo *image_info,
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% Image *image,ExceptionInfo *exception)
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%
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% A description of each parameter follows.
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%
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% o image_info: the image info.
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%
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% o image: The image.
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%
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% o exception: return any errors or warnings in this structure.
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%
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*/
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static MagickBooleanType WriteKERNELImage(const ImageInfo *image_info,
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Image *image,ExceptionInfo *exception)
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{
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char
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buffer[MagickPathExtent];
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MagickBooleanType
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status;
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ssize_t
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y;
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/*
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Open output image file.
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*/
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assert(image_info != (const ImageInfo *) NULL);
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assert(image_info->signature == MagickCoreSignature);
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assert(image != (Image *) NULL);
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assert(image->signature == MagickCoreSignature);
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if (image->debug != MagickFalse)
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(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
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assert(exception != (ExceptionInfo *) NULL);
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assert(exception->signature == MagickCoreSignature);
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status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
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if (status == MagickFalse)
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return(status);
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/*
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Write KERNEL header.
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*/
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(void) TransformImageColorspace(image,sRGBColorspace,exception);
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(void) FormatLocaleString(buffer,MagickPathExtent,"%gx%g:",(double)
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image->columns,(double) image->rows);
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(void) WriteBlobString(image,buffer);
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/*
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Convert MIFF to KERNEL raster pixels.
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*/
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for (y=0; y < (ssize_t) image->rows; y++)
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{
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const Quantum
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*magick_restrict p;
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ssize_t
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x;
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p=GetVirtualPixels(image,0,y,image->columns,1,exception);
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if (p == (const Quantum *) NULL)
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break;
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for (x=0; x < (ssize_t) image->columns; x++)
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{
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if ((x != 0) || (y != 0))
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(void) WriteBlobString(image,",");
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if ((image->alpha_trait == BlendPixelTrait) &&
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(GetPixelAlpha(image,p) < OpaqueAlpha/2))
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(void) WriteBlobString(image,"-");
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else
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{
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(void) FormatLocaleString(buffer,MagickPathExtent,"%.*g",
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GetMagickPrecision(),QuantumScale*GetPixelIntensity(image,p));
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(void) WriteBlobString(image,buffer);
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}
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p+=GetPixelChannels(image);
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}
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if (image->previous == (Image *) NULL)
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{
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status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
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image->rows);
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if (status == MagickFalse)
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break;
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}
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}
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(void) WriteBlobString(image,"\n");
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(void) CloseBlob(image);
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return(MagickTrue);
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}
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