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git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1023 632fc199-4ca6-4c93-a231-07263d6284db

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2013-08-23 07:46:07 +00:00
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@@ -10,10 +10,16 @@ extended to support image scaling.
and upsampling on DSPr2-capable MIPS platforms. This speeds up the compression and upsampling on DSPr2-capable MIPS platforms. This speeds up the compression
of full-color JPEGs by 6-18% on such platforms and decompression by 3-12%. of full-color JPEGs by 6-18% on such platforms and decompression by 3-12%.
[3] Added support for 4:1:1 subsampling in the TurboJPEG API. This is mainly [3] Added support for 4:1:1 subsampling to the TurboJPEG API. This is mainly
included for compatibility, since 4:1:1 is not fully accelerated in included for compatibility, since 4:1:1 is not fully accelerated in
libjpeg-turbo and has no significant advantages relative to 4:2:0. libjpeg-turbo and has no significant advantages relative to 4:2:0.
[4] Added support for CMYK images to the TurboJPEG API. This feature allows
CMYK source images to be compressed to YCCK JPEGs and YCCK or CMYK JPEGs to be
decompressed to CMYK destination images. Conversion between CMYK and RGB
images is not supported. Such conversion requires a color management system
and is out of scope for a codec library.
1.3.1 1.3.1
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