darktable-org / darktable-org/darktable
Add gamma adjustment functionality to the RGB curves.
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- Dominant language
- C
- Stars
- 13.1k
- Forks
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- Avg merge
- 22h 14m
- Merged PRs (30d)
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Description
Hello. I greatly appreciate Darktable for its convenient curve adjustments in linear gamma. However, when making brightness-related adjustments, I've noticed that the cubic spline interpolation curve doesn't quite meet my needs—it lacks sufficient “smoothness” and physical accuracy. The gamma presets also lack flexibility. I would like to see a gamma adjustment added that allows modifying the overall curve gamma in linear space via a slider or curve.
- Add a slider below the curve, similar to NX Studio. (As shown in the image: gamma slider)
- Include a power law function option under “Interpolation Method,” limiting the number of points to 3.
I would be very grateful if this could be implemented. Thank you for your efforts. Have a great day.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by locating the RGB curves module and its existing Interpolation Method and gamma preset handling. Done means providing a gamma slider below the curve and a power law interpolation option limited to three points, with behavior matching the requested linear-space adjustment.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- c
- Domain
- computer-graphics
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100