Imagemagick Lzw Support

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Sustainability of LZW Compression - ImageMagick

    http://studio.imagemagick.org/discourse-server/viewtopic.php?t=37206
    During this process the files are also compressed with the Image_Magick engine with the command "-compress LZW". If I understand LZW compression correctly, it consists of an algorithm that has various variables that can be filled in different ways. It can only be decoded or reversed if the same key is used as the coder did use.

GIF LZW Decompression - ImageMagick

    http://www.imagemagick.org/discourse-server/viewtopic.php?t=16709
    Am desperately looking for GIF Image De compressor. Can anyone please help me decompressing Giff images compressed with lzw. * Will ImageMagick convert gif images with lzw conversion to uncompressed gif image. * If ImageMagick cannot help me, then can anyone let me know any other tool/library which can do this. Thanks In Advance. Mady

ImageMagick - File Formats

    http://imagemagick.sourceforge.net/http/www/formats.html
    ImageMagick is a robust collection of tools and libraries to read, write, and manipulate an image in any of the more popular image formats including GIF, JPEG, PNG, PDF, and Photo CD. With ImageMagick you can create GIFs dynamically making it suitable for Web applications. You can also resize, rotate, sharpen, color reduce, or add special effects to an image and save your completed work in the ...

command line - ImageMagick/Mogrify - compress image ...

    https://stackoverflow.com/questions/6331959/imagemagick-mogrify-compress-image-programmatically
    ImageMagick provides the -compress switch, which might do what you want.-compress: Use pixel compression specified by type when writing the image. Choices are: None, BZip, Fax, Group4, JPEG, JPEG2000, Lossless, LZW, RLE or Zip. To print a complete list of compression types, use -list compress.. Specify +compress to store the binary image in an uncompressed format.

ImageMagick: install

    http://imagemagick.sourceforge.net/http/www/install.html
    To avoid possibly infringing on this patent, support for LZW is disabled by default. With LZW support, GIF files written by ImageMagick will be much larger than expected. Note that the TIFF library must be patched in order to support LZW compression, and that this support must be …

GraphicsMagick Supported Formats

    http://www.graphicsmagick.org/formats.html
    This file format is identical to that used by Open ImageMagick to represent images in memory and is read in "zero time" via memory mapping. The MPC format is not portable and is not suitable as an archive format. It is suitable as an intermediate format for high-performance image processing. The MPC format requires two files to support one image.

ImageMagick - Image Formats

    http://web.mit.edu/GRAPHICs/src/ImageMagick-6.0.6/www/formats.html
    Note that since Unisys claims a patent on the LZW algorithm (expiring in the US as of June 2003) used by LZW-compressed TIFF files, ImageMagick binary distributions do not include support for the LZW algorithm so LZW TIFF files can not be written. Although a patch is available for libtiff to enable building with LZW support.

ImageMagick - Image Processing and Display Package

    http://www.csb.yale.edu/userguides/image/im/www/install.html
    With LZW support, GIF files written by ImageMagick will be much larger than expected.--enable-16bit-pixel By default ImageMagick represents images internally using an eight-bit pixel quantum (red, green, blue, and alpha component). Scientific applications, or other specialized applications, which must ensure that the full dynamic range of the ...



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