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JPEG Library
Independent JPEG Group's free JPEG software
-------------------------------------------
This package contains C software to implement JPEG image encoding, decoding, and
transcoding. JPEG is a standardized compression method for full-color and gray-scale
images.
The distributed programs provide conversion between JPEG "JFIF" format and image files
in PBMPLUS PPM/PGM, GIF, BMP, and Targa file formats. The core compression and
decompression library can easily be reused in other programs, such as image viewers.
The package is highly portable C code; we have tested it on many machines ranging from
PCs to Crays.
We are releasing this software for both noncommercial and commercial use. Companies
are welcome to use it as the basis for JPEG-related products. We do not ask a royalty,
although we do ask for an acknowledgement in product literature (see the README file in
the distribution for details). We hope to make this software industrial-quality --- although,
as with anything that's free, we offer no warranty and accept no liability.
For more information, contact jpeg-info@jpegclub.org.
Contents of this directory
-------------------------------------------
jpegsrc.vN.tar.gz contains source code, documentation, and test files for release N in
Unix format.
jpegsrN.zip contains source code, documentation, and test files for release N in Windows
format.
jpegaltui.vN.tar.gz contains source code for an alternate user interface for cjpeg/djpeg in
Unix format.
jpegaltuiN.zip contains source code for an alternate user interface for cjpeg/djpeg in
Windows format.
wallace.ps.gz is a PostScript file of Greg Wallace's introductory article about JPEG. This is
an update of the article that appeared in the April 1991 Communications of the ACM.
jpeg.documents.gz tells where to obtain the JPEG standard and documents about
JPEG-related file formats.
jfif.ps.gz is a PostScript file of the JFIF (JPEG File Interchange Format) format
specification.
jfif.txt.gz is a plain text transcription of the JFIF specification; it's missing a figure, so use
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