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danielgtaylor / jpeg-archive

Utilities for archiving JPEGs for long term storage.
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min can be larger than max in jpeg-recompress #74

Closed mika-s closed 6 years ago

mika-s commented 6 years ago

I'm not sure if this really is an issue or not.

The min argument is allowed to be larger than the max argument. jpeg-recompress will run like this:

jpeg-recompress.exe original.jpg new.jpg --quality low --max 10

Metadata size is 0kb
ssim at q=25 (40 - 10): 0.992004
ssim at q=18 (26 - 10): 0.985314
ssim at q=15 (19 - 10): 0.979637
ssim at q=13 (16 - 10): 0.973997
ssim at q=12 (14 - 10): 0.969485
Final optimized ssim at q=12: 0.963419
New size is 5% of original (saved 1327 kb)
lfos commented 6 years ago

Fixed in 68dcd25 (Ensure minimum quality is smaller than maximum quality, 2018-05-20).