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license: cc-by-sa-4.0
tags:
- lut
- film-emulation
- color-grading
---
# 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](https://github.com/andreavolpato/spektrafilm) | Andrea Volpato | CC BY-SA 4.0 | 14 |
| `_sl` | [Spectral Film LUT](https://github.com/JanLohse/spectral_film_lut) | Jan Lohse | MIT (software) | 39 |
| `_rt` | [RawTherapee Film Simulation](https://rawpedia.rawtherapee.com/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.
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