ImageMagick: MagickCore, C API for ImageMagick: Transform an Image
Author: ImageMagick Studio LLC
Description: ImageMagick® is a software suite to create, edit, and compose bitmap images. It can read, convert and write images in a variety of formats (about 100) including GIF, JPEG, JPEG-2000, PNG, PDF, PhotoCD, TIFF, and DPX. Use ImageMagick to translate, flip, mirror, rotate, scale, shear and transform images, adjust image colors, apply various special effects, or draw text, lines, polygons, ellipses and Bézier curves. ImageMagick is free software delivered as a ready-to-run binary distribution or as source code that you can freely use, copy, modify, and distribute. Its license is compatible with the GPL. It runs on all major operating systems. The functionality of ImageMagick is typically utilized from the command line or you can use the features from programs written in your favorite programming language. Choose from these interfaces: MagickCore (C), MagickWand (C), ChMagick (Ch), Magick++ (C++), JMagick (Java), L-Magick (Lisp), PascalMagick (Pascal), PerlMagick (Perl), MagickWand for PHP (P [cell cut: 1167 characters, first 1000 kept]
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## Chop Chop() removes a region of an image and collapses the image to occupy the removed portion. The format of the ChopImage method is:
      Image *ChopImage(const Image *image,const RectangleInfo *chop_info)
        ExceptionInfo *exception)
A description of each parameter follows: ##### image The image. ##### chop_info Define the region of the image to chop. ##### exception Return any errors or warnings in this structure. ## CropImage CropImage() extracts a region of the image starting at the offset defined by geometry. The format of the CropImage method is:
      Image *CropImage(const Image *image,const RectangleInfo *geometry,
        ExceptionInfo *exception)
A description of each parameter follows: ##### image The image. ##### geometry Define the region of the image to crop with members x, y, width, and height. ##### exception Return any errors or warnings in this structure. ## ExtentImage ExtentImage() extends the image as defined by the geometry and gravity. The format of the ExtentImage method is:
      Image *ExtentImage(const Image *image,const RectangleInfo *geometry,
        ExceptionInfo *exception)
A description of each parameter follows: ##### image The image. ##### geometry Define the region of the image to extend with members x, y, width, and height. ##### exception Return any errors or warnings in this structure. ## FlattenImage FlattenImage() composites all images from the current image pointer to the end of the image list and returns a single flattened image. The format of the FlattenImage method is:
      Image *FlattenImage(Image *image,ExceptionInfo *exception)
A description of each parameter follows: ##### image The image sequence. ##### exception Return any errors or warnings in this structure. ## FlipImage FlipImage() creates a vertical mirror image by reflecting the pixels around the central x-axis. The format of the FlipImage method is:
      Image *FlipImage(const Image *image,ExceptionInfo *exception)
A description of each parameter follows: ##### image The image. ##### exception Return any errors or warnings in this structure. ## FlopImage FlopImage() creates a horizontal mirror image by reflecting the pixels around the central y-axis. The format of the FlopImage method is:
      Image *FlopImage(const Image *image,ExceptionInfo *exception)
A description of each parameter follows: ##### image The image. ##### exception Return any errors or warnings in this structure. ## MosaicImages MosaicImages() inlays an image sequence to form a single coherent picture. It returns a single image with each image in the sequence composited at the location defined by the page member of the image structure. The format of the MosaicImage method is:
      Image *MosaicImages(const Image *image,ExceptionInfo *exception)
A description of each parameter follows: ##### image The image. ##### exception Return any errors or warnings in this structure. ## RollImage RollImage() offsets an image as defined by x_offset and y_offset. The format of the RollImage method is:
      Image *RollImage(const Image *image,const long x_offset,
        const long y_offset,ExceptionInfo *exception)
A description of each parameter follows: ##### image The image. ##### x_offset The number of columns to roll in the horizontal direction. ##### y_offset The number of rows to roll in the vertical direction. ##### exception Return any errors or warnings in this structure. ## ShaveImage ShaveImage() shaves pixels from the image edges. It allocates the memory necessary for the new Image structure and returns a pointer to the new image. The format of the ShaveImage method is:
      Image *ShaveImage(const Image *image,const RectangleInfo *shave_info,
        ExceptionInfo *exception)
A description of each parameter follows: ##### shave_image Method ShaveImage returns a pointer to the shaved image. A null image is returned if there is a memory shortage or if the image width or height is zero. ##### image The image. ##### shave_info Specifies a pointer to a RectangleInfo which defines the region of the image to crop. ##### exception Return any errors or warnings in this structure. ## SpliceImage SpliceImage() splices a solid color into the image as defined by the geometry. The format of the SpliceImage method is:
      Image *SpliceImage(const Image *image,const RectangleInfo *geometry,
        ExceptionInfo *exception)
A description of each parameter follows: ##### image The image. ##### geometry Define the region of the image to splice with members x, y, width, and height. ##### exception Return any errors or warnings in this structure. ## TransformImage TransformImage() is a convenience method that behaves like ResizeImage() or CropImage() but accepts scaling and/or cropping information as a region geometry specification. If the operation fails, the original image handle is returned. The format of the TransformImage method is:
      MagickBooleanType TransformImage(Image **image,const char *crop_geometry,
        const char *image_geometry)
A description of each parameter follows: ##### image The image The transformed image is returned as this parameter. ##### crop_geometry A crop geometry string. This geometry defines a subregion of the image to crop. ##### image_geometry An image geometry string. This geometry defines the final size of the image. ## TransformImages TransformImages() calls TransformImage() on each image of a sequence. The format of the TransformImage method is:
      MagickBooleanType TransformImages(Image **image,
        const char *crop_geometry,const char *image_geometry)
A description of each parameter follows: ##### image The image The transformed image is returned as this parameter. ##### crop_geometry A crop geometry string. This geometry defines a subregion of the image to crop. ##### image_geometry An image geometry string. This geometry defines the final size of the image. ## TransposeImage TransposeImage() creates a horizontal mirror image by reflecting the pixels around the central y-axis while rotating them by 90 degrees. The format of the TransposeImage method is:
      Image *TransposeImage(const Image *image,ExceptionInfo *exception)
A description of each parameter follows: ##### image The image. ##### exception Return any errors or warnings in this structure. ## TransverseImage TransverseImage() creates a vertical mirror image by reflecting the pixels around the central x-axis while rotating them by 270 degrees. The format of the TransverseImage method is:
      Image *TransverseImage(const Image *image,ExceptionInfo *exception)
A description of each parameter follows: ##### image The image. ##### exception Return any errors or warnings in this structure. ## TrimImage TrimImage() trims pixels from the image edges. It allocates the memory necessary for the new Image structure and returns a pointer to the new image. The format of the TrimImage method is:
      Image *TrimImage(const Image *image,ExceptionInfo *exception)
A description of each parameter follows: ##### image The image. ##### exception Return any errors or warnings in this structure.

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