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ctl

brew install ctl v1.5.5 AMPAS

Programming language for digital color management

25
30-day installs · #6247
64
90-day · #6647
294
365-day · #6362
259
★ GitHub stars · updated 4mo ago

Runtime dependencies

Build dependencies

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Raw metadata
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  "aliases": [],
  "alternatives": [],
  "build_dependencies": [
    "cmake"
  ],
  "categories": [],
  "caveats": null,
  "conflicts_with": [],
  "dependencies": [
    "imath",
    "libtiff",
    "openexr"
  ],
  "deprecated": 0,
  "deprecation_reason": null,
  "desc": "Programming language for digital color management",
  "disable_reason": null,
  "disabled": 0,
  "enrichment_fetched_at": "2026-06-20T23:36:44+00:00",
  "first_seen": "2026-06-20T23:34:18+00:00",
  "full_name": "ctl",
  "github_default_branch": "master",
  "github_last_commit_at": "2026-03-31T18:26:29Z",
  "github_readme_excerpt": "# Color Transformation Language (CTL)\n\n## What is CTL?\nThe Color Transformation Language, or CTL, is a small programming language\ndesigned to serve as a building block for digital color management systems. It\nallows users to describe color transforms in a concise and unambiguous way by\nexpressing them as programs. \n\n### How it Works\nA color management system that supports CTL includes an \"interpreter\", a\nsoftware program that performs the operations described in a CTL program on the\npixels of an image. To apply a transform, the system instructs the interpreter\nto load and run the specific CTL program. The original and the transformed\nimages constitute the program\u0027s input and output. \n\n**Interchange:** Color transforms can be easily shared by distributing CTL\nprograms. Two parties using the same CTL program can apply the identical\ntransform to an image.\n\n**Parameters:** CTL programs can include input parameters (such as \"exposure\")\nthat adjust the transformation. To guarantee identical results, parties must\nagree on both the CTL program and the settings for the transform\u0027s parameters.\n\n### Why A Domain-Specific Language?\nWhile general-purpose programming languages like C, C++ or Python can describe\ncolor transforms, they are often unsuitable for transform interchange due to\nseveral factors:\n\n* Some languages require the recipient to explicitly compile and link source\n  code before it can be executed. \n* Code must be carefully written to ensure it behaves identially and remains\n  portable across different operating systems.\n* If general purpose code is executed inside a larger application, bugs can\n  cause the entire application to malfunction or crash. \n* Providing reliable protection against viruses and Trojan horses is difficult\n  with most general-purpose programming languages.\n\nBy contrast, CTL is designed to allow only the kinds of operations that are\nneeded to describe color transforms. This focused approach improves program\nportability, protects users against ",
  "github_repo": "aces-aswf/CTL",
  "github_stars": 259,
  "github_topics": [],
  "homepage": "https://github.com/aces-aswf/CTL",
  "homepage_og_description": null,
  "homepage_og_image": null,
  "homepage_title": null,
  "installs_30d": 25,
  "installs_365d": 294,
  "installs_90d": 64,
  "keg_only": 0,
  "keg_only_reason": null,
  "last_seen": "2026-06-20T23:34:18+00:00",
  "license": "AMPAS",
  "llm_generated_at": null,
  "llm_model": null,
  "name": "ctl",
  "oldnames": [],
  "one_liner": null,
  "optional_dependencies": [],
  "rank_30d": 6247,
  "rank_365d": 6362,
  "rank_90d": 6647,
  "raw_hash": "4e55044dd5eec454",
  "recommended_dependencies": [],
  "revision": 0,
  "ruby_source_path": "Formula/c/ctl.rb",
  "tap": "homebrew/core",
  "test_dependencies": [],
  "uses_from_macos": [],
  "version_head": "HEAD",
  "version_stable": "1.5.5",
  "versioned_formulae": [],
  "why_use_this": null
}