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| author | Hartmut Goebel <h.goebel@crazy-compilers.com> | 2019-07-11 22:20:45 +0200 |
|---|---|---|
| committer | Hartmut Goebel <h.goebel@crazy-compilers.com> | 2019-07-13 20:04:44 +0200 |
| commit | 6b61dea3365e8cbb6d5a918df5288489e27854e2 (patch) | |
| tree | 35d7b610700d63c925c2d19545302c17ba8df752 /gnu | |
| parent | 8db1bd188b17c25f4bef8f3f4579df350a9b1e22 (diff) | |
| download | patches-6b61dea3365e8cbb6d5a918df5288489e27854e2.tar patches-6b61dea3365e8cbb6d5a918df5288489e27854e2.tar.gz | |
gnu: Add pngquant.
* gnu/packages/image.scm (pngquant): New variable.
Diffstat (limited to 'gnu')
| -rw-r--r-- | gnu/packages/image.scm | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/gnu/packages/image.scm b/gnu/packages/image.scm index c4af4e0eb2..5d3aa03124 100644 --- a/gnu/packages/image.scm +++ b/gnu/packages/image.scm @@ -337,6 +337,50 @@ images. This library can significantly reduces file sizes and powers pngquant and other PNG optimizers.") (license license:gpl3+))) +(define-public pngquant + (package + (name "pngquant") + (version "2.12.3") + (source + (origin + (method git-fetch) + (uri (git-reference + (url "https://github.com/kornelski/pngquant.git") + (commit version))) + (file-name (git-file-name name version)) + (sha256 + (base32 "1yiwbcihn4311fpfd568gg8zmmhqwg80jmhbhkb5msiipgd9xv33")))) + (build-system gnu-build-system) + (arguments + `(#:test-target "test" + #:configure-flags + '("--with-openmp" "--with-lcms2"))) + (native-inputs + `(("pkg-config" ,pkg-config))) + (inputs + `(("libpng" ,libpng) + ("zlib" , zlib) + ("lcms" ,lcms) + ("libimagequant" ,libimagequant))) + (home-page "https://pngquant.org/") + (synopsis "Utility and library for lossy compressing PNG images") + (description "pngquant is a PNG compressor that significantly reduces file +sizes by converting images to a more efficient 8-bit PNG format with alpha +channel (often 60-80% smaller than 24/32-bit PNG files). Compressed images +are fully standards-compliant and are supported by all web browsers and +operating systems. + +Features: +@enumerate +@item High-quality palette generation using a combination of vector + quantization algorithms. +@item Unique adaptive dithering algorithm that adds less noise to images + than the standard Floyd-Steinberg. +@item Easy to integrate with shell scripts, GUIs and server-side software. +@item Fast mode for real-time processing/large numbers of images. +@end enumerate") + (license license:gpl3+))) + (define-public libjpeg (package (name "libjpeg") |