{"id":23188242,"url":"https://github.com/afichet/exr-diff","last_synced_at":"2025-04-05T05:43:40.556Z","repository":{"id":133121328,"uuid":"359238605","full_name":"afichet/exr-diff","owner":"afichet","description":"A very simple tool to generate Delta E 2000 image difference between two EXR files","archived":false,"fork":false,"pushed_at":"2023-06-14T12:47:41.000Z","size":96,"stargazers_count":2,"open_issues_count":0,"forks_count":0,"subscribers_count":1,"default_branch":"master","last_synced_at":"2025-02-10T13:38:04.617Z","etag":null,"topics":["cie-delta-e-2000","difference","openexr"],"latest_commit_sha":null,"homepage":"","language":"C++","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"bsd-3-clause","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/afichet.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2021-04-18T19:48:34.000Z","updated_at":"2023-06-19T14:53:41.000Z","dependencies_parsed_at":"2023-10-04T19:22:33.463Z","dependency_job_id":null,"html_url":"https://github.com/afichet/exr-diff","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/afichet%2Fexr-diff","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/afichet%2Fexr-diff/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/afichet%2Fexr-diff/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/afichet%2Fexr-diff/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/afichet","download_url":"https://codeload.github.com/afichet/exr-diff/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":247294463,"owners_count":20915338,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["cie-delta-e-2000","difference","openexr"],"created_at":"2024-12-18T11:13:29.118Z","updated_at":"2025-04-05T05:43:40.541Z","avatar_url":"https://github.com/afichet.png","language":"C++","readme":"# EXR Diff\n\nThis is a very simple tool to generate a Delta E 2000 image difference between two EXR files using D65 white achromatic reference illuminant (CIE 1931 2°).\n\nIt is meant to be compiled easily without any headache on any platform.\n\nIt is **not** meant to be fancy or bloated.\n\n**Warning! This tool does not currently support:**\n\n- **Custom chromaticities: chromaticities specified in the EXR header will be ignored. Rec 709 is assumed. If you're using any other colorspace, the resulting Delta E will not be correct.**\n- **Luminance chrominance images.**\n\n## Compilation\nClone the repository:\n```bash\ngit clone https://github.com/afichet/exr-diff.git\ncd exr-diff\n```\n\nAfter cloning the repository, ensure you have the submodule:\n```bash\ngit submodule update --init --recursive\n```\n\nThen, you're ready to compile\n```bash\nmkdir build\ncd build\ncmake ..\nmake\n```\n\nYou then can execute the program placed in `bin/`:\n```bash\n./bin/diff-exr\n```\n\n## Usage\n\n### Basic usage:\nThis compute the Delta E 2000 between two EXR image, with the scale maxing to 10, no exposure compensation.\n\n```bash\ndiff-exr \u003cexr_image_1\u003e \u003cexr_image_2\u003e -o \u003cimage_diff_png\u003e\n```\n\n### Options\n\nTo see all available options, use `-h` without extra arguments.\n\n## License\n\nThis tool uses the following Open Source libraries:\n- TinyEXR https://github.com/syoyo/tinyexr\n- LodePNG https://lodev.org/lodepng/\n- TCLAP http://tclap.sourceforge.net/\n\nIt also uses the colormaps from https://bids.github.io/colormap/ by Nathaniel J. Smith, Stefan van der Walt, and (in the case of viridis) Eric Firing. These are licensed under CC0 license (http://creativecommons.org/publicdomain/zero/1.0/).\n\nIt is licensed under the 3-clause BSD license.\n\n","funding_links":[],"categories":[],"sub_categories":[],"project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fafichet%2Fexr-diff","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fafichet%2Fexr-diff","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fafichet%2Fexr-diff/lists"}