{ lib, buildPythonPackage, fetchFromGitHub, numpy, scipy, pillow, pywavelets, fetchpatch, setuptools, }: buildPythonPackage rec { pname = "pyssim"; version = "0.7"; pyproject = true; build-system = [ setuptools ]; dependencies = [ numpy scipy pillow pywavelets ]; # PyPI tarball doesn't contain test images so let's use GitHub src = fetchFromGitHub { owner = "jterrace"; repo = "pyssim"; tag = "v${version}"; sha256 = "sha256-LDNIugQeRqNsAZ5ZxS/NxHokEAwefpfRutTRpR0IcXk="; }; patches = [ # "Use PyWavelets for continuous wavelet transform"; signal.cwt was removed and broke the build (fetchpatch { url = "https://github.com/jterrace/pyssim/commit/64a58687f261eb397e9c22609b5d48497ef02762.patch?full_index=1"; hash = "sha256-u6okuWZgGcYlf/SW0QLrAv0IYuJi7D8RHHEr8DeXKcw="; }) ]; # Tests are copied from .github/workflows/python-package.yml checkPhase = '' runHook preCheck $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 $out/bin/pyssim --cw --width 128 --height 128 test-images/test3-orig.jpg test-images/test3-rot.jpg | grep 0.938 runHook postCheck ''; meta = { description = "Module for computing Structured Similarity Image Metric (SSIM) in Python"; mainProgram = "pyssim"; homepage = "https://github.com/jterrace/pyssim"; changelog = "https://github.com/jterrace/pyssim/blob/${src.tag}/CHANGES.md"; license = lib.licenses.mit; maintainers = with lib.maintainers; [ jluttine ]; }; }