44 lines
1.7 KiB
Nix
44 lines
1.7 KiB
Nix
{ lib, buildPythonPackage, fetchFromGitHub, numpy, scipy, pillow, fetchpatch }:
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buildPythonPackage rec {
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pname = "pyssim";
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version = "0.6";
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propagatedBuildInputs = [ numpy scipy pillow ];
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# PyPI tarball doesn't contain test images so let's use GitHub
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src = fetchFromGitHub {
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owner = "jterrace";
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repo = pname;
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rev = "v${version}";
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sha256 = "sha256-VvxQTvDTDms6Ccyclbf9P0HEQksl5atPPzHuH8yXTmc=";
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};
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patches = [
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# "Replace Image.ANTIALIAS with Image.LANCZOS"
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# Image.ANTIALIAS has been removed in Pillow 10.0.0,
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# the version currently in nixpkgs,
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# and Image.LANCZOS is a drop-in since Pillow 2.7.0.
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# https://github.com/jterrace/pyssim/pull/45
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(fetchpatch {
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url = "https://github.com/jterrace/pyssim/commit/db4296c12ca9c027eb9cd61b52195a78dfcc6711.patch";
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hash = "sha256-wNp47EFtjXv6jIFX25IErXg83ksmGRNFKNeMFS+tP6s=";
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})
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];
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# Tests are copied from .travis.yml
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checkPhase = ''
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$out/bin/pyssim test-images/test1-1.png test-images/test1-1.png | grep 1
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$out/bin/pyssim test-images/test1-1.png test-images/test1-2.png | grep 0.998
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$out/bin/pyssim test-images/test1-1.png "test-images/*" | grep -E " 1| 0.998| 0.672| 0.648" | wc -l | grep 4
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$out/bin/pyssim --cw --width 128 --height 128 test-images/test1-1.png test-images/test1-1.png | grep 1
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$out/bin/pyssim --cw --width 128 --height 128 test-images/test3-orig.jpg test-images/test3-rot.jpg | grep 0.938
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'';
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meta = with lib; {
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description = "Module for computing Structured Similarity Image Metric (SSIM) in Python";
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homepage = "https://github.com/jterrace/pyssim";
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license = licenses.mit;
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maintainers = with maintainers; [ jluttine ];
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};
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}
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