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danielgtaylor / jpeg-archive

Utilities for archiving JPEGs for long term storage.
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Using jpeg-recompress with cmyk color system doesn't works #54

Open abarre opened 7 years ago

abarre commented 7 years ago

We detected that jpeg images in the CYMK color system were not supported by jpeg-recompress. However, mozjpeg seems to support this color system.

jpeg-recompress -Q --quality medium -m mpe -S disable ~/Desktop/3346470422995_patch.jpeg test.jpg
Unsupported color conversion request

I tried to use jpegoptim on the same image that also leverages on mozjpeg and jpegoptim correctly compresses the image.

I think that the right color system is not correctly detected by jpeg-recompress and thus jpeg-recompress doesn't correctly call mozjpeg methods.