Previewing JPG file in CMYk results in black background and wrong colors
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- Dominant language
- C#
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Description
Describe
When preview an JPG which is exported in CMYK. the preview results in wrong colors and wrong background
To Reproduce
- Find attached JPG in your download folder.
- Select it and press spacebar to QuickView it
- Result is a preview with black background and wrong colors
Expected behavior
A preview of an image how it is intended. Seems it always thinks an image is RGB
Desktop (please complete the following information):
- Win11 25375.1
- 3.7.3
Screenshots and Exception Log
preview from spacebar
intended preview as seen in photoshop
PS no info about the logfile. This issue template showed something with a link, but it links to something about distribution
(https://github.com/QL-Win/QuickLook/wiki/Differences-Between-Distributions#user-data-location
This is at the bottom of the issue bug template
If applicable, add screenshots and logs to help explain your problem. The log file is located in one of several locations.
Contributor guide
No contributing guide indexed for this repository
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 reproducing the issue in QuickLook on Windows 11 with the attached CMYK JPG and compare it with an RGB preview. The issue names no source file or test, so trace the image preview path from the spacebar QuickView entry point. Done means the CMYK image renders with its intended colors and background.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- csharp
- Domain
- computer-graphics, desktop
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100