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gnu: libjpeg: Improve description. 

* gnu/packages/image.scm (libjpeg)[description]: Add the list of the programs
it provides.

Signed-off-by: 宋文武 <iyzsong@member.fsf.org>
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Maxim Cournoyer 2018-09-02 17:49:51 -04:00 committed by 宋文武
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@ -267,8 +267,16 @@ files. It can compress them as much as 40% losslessly.")
"Libjpeg implements JPEG image encoding, decoding, and transcoding.
JPEG is a standardized compression method for full-color and gray-scale
images.
The included programs provide conversion between the JPEG format and
image files in PBMPLUS PPM/PGM, GIF, BMP, and Targa file formats.")
It also includes programs that provide conversion between the JPEG format and
image files in PBMPLUS PPM/PGM, GIF, BMP, and Targa file formats, as well as
lossless JPEG manipulations such as rotation, scaling or cropping:
@enumerate
@item cjpeg
@item djpeg
@item jpegtran
@item rdjpgcom
@item wrjpgcom
@end enumerate")
(license license:ijg)
(home-page "http://www.ijg.org/")))