- 追加された行はこの色です。
- 削除された行はこの色です。
- libjpeg へ行く。
[[JPEG]]
- http://www.ijg.org/
- New jpeg version (8b)
-- http://ufoai.org/forum/index.php?topic=5430.0
- jpeg-9b/libjpeg.txt
A word about functions *not* provided by the library. We handle a subset of
the ISO JPEG standard; most baseline, extended-sequential, and progressive
JPEG processes are supported. (Our subset includes all features now in common
use.) Unsupported ISO options include:
* Hierarchical storage
* Lossless JPEG
* DNL marker
* Nonintegral subsampling ratios
We support 8-bit to 12-bit data precision, but this is a compile-time choice
rather than a run-time choice; hence it is difficult to use different
precisions in a single application.
* 高速化 [#la594313]
- [[libjpeg-turbo]]
** SIMD [#qa662b62]
- http://cetus.sakura.ne.jp/softlab/jpeg-x86simd/jpegsimd.html
** idct scaling decode [#k219574e]
- New djpeg -scale N/8 with all N=1...16 feature
-- http://jpegclub.org/djpeg/
* 使い方 [#rbdb1811]
- JPEGファイルの入出力
-- http://www.syuhitu.org/other/jpeg/jpeg.html
- [programing][C/C++][gail] jpeglibの勉強
-- http://d.hatena.ne.jp/MaD/20070302
*. [#i192d38f]
- http://d.hatena.ne.jp/MaD/20070302
- http://refspecs.freestandards.org/LSB_3.1.0/LSB-Desktop-generic/LSB-Desktop-generic/libjpegman.html
- https://tahoe.ca.sandia.gov/public/VTK-doc/jdapimin_8c-source.php#l00030
// - http://spalab.naist.jp/~yuu-t/wiki/index.php?libjpeg-howto
* ファイルを介さずメモリ上で処理 [#n03d36d3]
- http://yarimit.blog.so-net.ne.jp/2005-06-03
- http://d.hatena.ne.jp/mabos/20060720
- http://www.yagoto-urayama.jp/~oshimaya/nbug/etc/using_jpeg.html
