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author | rodent <rodent@pkgsrc.org> | 2013-04-07 20:49:31 +0000 |
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committer | rodent <rodent@pkgsrc.org> | 2013-04-07 20:49:31 +0000 |
commit | 56d0e89eec7a65cd783aaecd29fefde7b20f7a96 (patch) | |
tree | 79de035a23bbb285c8713b492fa4fa499634f7f8 /graphics/jpeg_ls/DESCR | |
parent | 836f824b7f7339847cc2cb57f6c10401a6122132 (diff) | |
download | pkgsrc-56d0e89eec7a65cd783aaecd29fefde7b20f7a96.tar.gz |
Edited DESCR in the case of:
File too long (should be no more than 24 lines).
Line too long (should be no more than 80 characters).
Trailing empty lines.
Trailing white-space.
Trucated the long files as best as possible while preserving the most info
contained in them.
Diffstat (limited to 'graphics/jpeg_ls/DESCR')
-rw-r--r-- | graphics/jpeg_ls/DESCR | 45 |
1 files changed, 21 insertions, 24 deletions
diff --git a/graphics/jpeg_ls/DESCR b/graphics/jpeg_ls/DESCR index f7d883f126e..5ab81692c4a 100644 --- a/graphics/jpeg_ls/DESCR +++ b/graphics/jpeg_ls/DESCR @@ -1,25 +1,22 @@ -This software package contains an implementation of JPEG-LS, the -emerging lossless/near-lossless compression standard for continuous-tone -images being developed by ISO/IEC JTC1/SC29/WG1 (draft document -FCD14495 as of November 1997). The names of the executables in the -software package derive from the acronym LOCO, as the core of the -new standard is based on the LOCO-I algorithm (LOw COmplexity -LOssless COmpression for Images) developed at Hewlett-Packard -Laboratories (reference: M. Weinberger, G. Seroussi, G. Sapiro, -"LOCO-I: A Low Complexity, Context-Based, Lossless Image Compression -Algorithm," Proc. IEEE Data Compression Conference, Snowbird, Utah, -March-April 1996). +This software package contains an implementation of JPEG-LS, the emerging +lossless/near-lossless compression standard for continuous-tone images being +developed by ISO/IEC JTC1/SC29/WG1 (draft document FCD14495 as of November +1997). The names of the executables in the software package derive from the +acronym LOCO, as the core of the new standard is based on the LOCO-I algorithm +(LOw COmplexity LOssless COmpression for Images) developed at Hewlett-Packard +Laboratories (reference: M. Weinberger, G. Seroussi, G. Sapiro, "LOCO-I: A Low +Complexity, Context-Based, Lossless Image Compression Algorithm," Proc. IEEE +Data Compression Conference, Snowbird, Utah, March-April 1996). -The term "near-lossless compression" refers to a lossy algorithm -for which each decompressed image sample differs from the corresponding -original image sample by not more than a pre-specified value, the -(usually small) "loss." Lossless compression corresponds to loss=0. -Even though the term "continuous-tone image" refers in principle -to any image whose components have more than one bit per sample, -palletized images may require a reordering of the color palette -for best compression results using LOCO-I on the array of color -indices. This functionality is not implemented in the present -software, although it is supported by the new standard, and is easy -enough to implement with the tools given. Notice, however, that -LOCO-I and JPEG-LS were not designed, and might not give optimal -performance, for images that have been palletized through dithering. +The term "near-lossless compression" refers to a lossy algorithm for which each +decompressed image sample differs from the corresponding original image sample +by not more than a pre-specified value, the (usually small) "loss." Lossless +compression corresponds to loss=0. Even though the term "continuous-tone image" +refers in principle to any image whose components have more than one bit per +sample, palletized images may require a reordering of the color palette for best +compression results using LOCO-I on the array of color indices. This +functionality is not implemented in the present software, although it is +supported by the new standard, and is easy enough to implement with the tools +given. Notice, however, that LOCO-I and JPEG-LS were not designed, and might not +give optimal performance, for images that have been palletized through +dithering. |