Gainmap improvements #405
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Gainmap improvements #405
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Owner
Tom94
commented
Jan 25, 2026
Tom94
commented
- Implement JPEG gainmaps manually rather than relying on libultrahdr
- faster
- can extract more metadata
- shares color processing with HEIC/AVIF
- also comes with support for other, more generic, multi-part JPEGs
- Makes grayscale JPEG loading a bit faster
- EXIF sRGB tag now correctly overrides ICC profiles in JPEG images
- Support non-auxiliary gainmap images in HEIC/AVIF files
Shouldn't affect anything in practice, because weight is always 1 in tev. But... good fix for future-proofing.
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