nixpkgs/pkgs/development/python-modules/pyssim/default.nix
2021-01-25 18:31:47 +01:00

33 lines
1.2 KiB
Nix

{ lib, buildPythonPackage, fetchFromGitHub, numpy, scipy, pillow }:
buildPythonPackage rec {
pname = "pyssim";
version = "0.4";
propagatedBuildInputs = [ numpy scipy pillow ];
# PyPI tarball doesn't contain test images so let's use GitHub
src = fetchFromGitHub {
owner = "jterrace";
repo = pname;
rev = "v${version}";
sha256 = "0rnj3xdhma1fc0fg0jjsdy74ar0hgr3w8kygbnijqjdms7m3asqm";
};
# Tests are copied from .travis.yml
checkPhase = ''
$out/bin/pyssim test-images/test1-1.png test-images/test1-1.png | grep 1
$out/bin/pyssim test-images/test1-1.png test-images/test1-2.png | grep 0.998
$out/bin/pyssim test-images/test1-1.png "test-images/*" | grep -E " 1| 0.998| 0.672| 0.648" | wc -l | grep 4
$out/bin/pyssim --cw --width 128 --height 128 test-images/test1-1.png test-images/test1-1.png | grep 1
$out/bin/pyssim --cw --width 128 --height 128 test-images/test3-orig.jpg test-images/test3-rot.jpg | grep 0.938
'';
meta = with lib; {
description = "Module for computing Structured Similarity Image Metric (SSIM) in Python";
homepage = "https://github.com/jterrace/pyssim";
license = licenses.mit;
maintainers = with maintainers; [ jluttine ];
};
}