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heif_enc (or heif-enc if Homebrew) from libheif offers lossless and maintains profiles. I saw the same 50% reduction versus TIFF. ImageMagick convert still dam
by floatingatoll 7y ago
heif_enc (or heif-enc if Homebrew) from libheif offers lossless and maintains profiles. I saw the same 50% reduction versus TIFF.
ImageMagick convert still damaged color profiles (refuses to write them, afaict?), as of a month ago.
- webmobdev 7y agoThanks. Will check this out. But I suspect if it will work properly on some of my files - GIMP also uses libheif and the HEIF plugin that uses it kept crashing on some of my huge image files.
- floatingatoll 7y agoI only tested it up to ~60MB TIFFs, not sure, sorry.
- webmobdev 7y agoI noticed a strange issue with GIMP libheif plug-in - some of the converted images look a little washed out (any such noticeable colour change is ofcourse, unacceptable). But macOS Preview converts them perfectly without any such colour difference. I suspect libheif to be buggy.
- floatingatoll 7y agoI only had success with the command-line utility. Attempting to use libheif embedded in other tools did not succeed. I assume this is because the other tools implemented libheif before it supported ICC and have not kept up with the times.