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jpegv6bi.readme
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1995-09-06
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Short: IJG JPEG V6 binaries and docs
Author: IJG, Guenther@studbox.uni-stuttgart.de (Guenther Roehrich)
Uploader: Guenther@studbox.uni-stuttgart.de (Guenther Roehrich)
Type: gfx/conv
This distribution contains the sixth public release of the Independent JPEG
Group's free JPEG software.
Version 6 2-Aug-95
-------------------
Progressive JPEG support: library can read and write full progressive JPEG
files. A "buffered image" mode supports incremental decoding for on-the-fly
display of progressive images. Simply recompiling an existing IJG-v5-based
decoder with v6 should allow it to read progressive files, though of course
without any special progressive display.
New "jpegtran" application performs lossless transcoding between different
JPEG formats; primarily, it can be used to convert baseline to progressive
JPEG and vice versa. In support of jpegtran, the library now allows lossless
reading and writing of JPEG files as DCT coefficient arrays. This ability
may be of use in other applications.