darktable-org / darktable-org/darktable
Phase One p65+ strange demosaicing
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- Dominant language
- C
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Description
In Darktable, darkroom, the phaseone IIQL from the p65+ is cut in 4 equal rectangles with different slight tint & luminosity, the exports too. I don't have the problem with Capture One & Rawtherapee.
The problem exist within Dt 2.7 & 2.6.2, in ubuntu studio 18.04, 18.10, 19.04. I put the raw in a dropbox folder.
< https://www.dropbox.com/sh/lahqwwd8aahmzb2/AABOqKXcWTIXgCC0YR45cEAza?dl=0 >
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
Download the supplied Phase One P65+ IIQL RAW from the Dropbox link and reproduce the four tinted, uneven rectangles in darktable's darkroom and exported output. Compare behavior across the mentioned darktable 2.7 and 2.6.2 environments; done means the image renders with consistent tint and luminosity in both views.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- c
- Domain
- computer-vision
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 25/100