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-rw-r--r--gnu/packages/image.scm44
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")