http://halicery.com/Image Decoders/JPEG/Decoder test.html

Images under decoder test

Some image files - original on the left, decoded BMP converted to PNG on the right.

Baseline

The first JPG I've found on my PC (XP that time).

Baseling jpeg, Restart Markers.

Progressive

10 scans.

Arithmetic

Found here and successfully decoded.

oops, your browser doesn't decode arithmetic jpeg

Monochrome

One component only.

CMYK

4 component. This is the original CMYK JPEG image from Wikipedia and the converted one.

ITU T.83

K1.JPG is a progressive, 4-component JPEG, I've spent the most time with this one:


Sat Feb 9 16:57:00 UTC+0100 2019 © A. Tarpai