Norton0924/OpenSourceLuts

Open-source film emulation LUTs

154 film emulation 3D LUTs from three open-source projects whose licenses allow commercial use, collected in one place with their original licenses and a record of every change. Each LUT keeps its own license: see the table and LICENSES/.

File suffix	Project	Author	License	LUTs
_sk	spektrafilm	Andrea Volpato	CC BY-SA 4.0	14
_sl	Spectral Film LUT	Jan Lohse	MIT (software)	39
_rt	RawTherapee Film Simulation	Pat David, Pavlov Dmitry, Michael Ezra et al.	CC BY-SA 4.0	101

Attribution

• Derived from spektrafilm by Andrea Volpato · https://github.com/andreavolpato/spektrafilm · Licensed CC BY-SA 4.0 · Modified by NicePhoto
• Generated with Spectral Film LUT by Jan Lohse · https://github.com/JanLohse/spectral_film_lut · MIT License
• RawTherapee Film Simulation Collection by Pat David, Pavlov Dmitry, Michael Ezra et al. · Licensed CC BY-SA 4.0 · Resampled by NicePhoto

The spektrafilm author also asks (not a legal requirement) that the LUTs are not resold as a paid LUT pack and not used to train commercial AI models. Please respect that.

Film and brand names are used only to say which stock a LUT approximates. None of the authors or this repository are affiliated with or endorsed by the trademark owners.

Download

• Hugging Face: https://huggingface.co/Norton0924/OpenSourceLuts
• ModelScope: https://modelscope.cn/models/Jiangdi/OpenSourceLuts

Files

• luts/<category>/<code>_<source>[_<variant>].lut16. Codes are neutral (category letter + number, e.g. C04) and never reused. Categories: daily (D), pro (P), slide (S), cine (C), bw (B), instant (I), experimental (X).
• manifest.json: every LUT with its code, category, source, the film it references (reference, the upstream name in sourceTitle), process, ISO, print paper, path, size and SHA-256.
• CHANGELOG.txt: what was changed, how, and by whom.
• LICENSES/: the original license texts.
• LUT format: 33³, LUT1 + uint32 LE size + RGB uint16 LE, red fastest, sRGB in / sRGB out.

Caveats

• spektrafilm and Spectral Film LUT simulate a negative printed on paper: whites sit around L* 83–90, not scanner white.
• Most RawTherapee looks were made by eye; they are not measured against film.