[FFmpeg-user] decoding jpeg2000 problem

[Carl Eugen Hoyos]

Paul B Mahol <onemda <at> gmail.com> writes:

> >> Compare native decoder output with one from ImageMagick.
> >
> > Iirc, ImageMagick does not support xyz, so this is always
> > broken.
> 
> Colors are broken but there is no banding.

Yes, and you get the same broken colours without banding 
if you don't convert from xyz to rgb. If you convert from 
xyz to rgb, you get the banding.
So there is apparently no issue with the decoder (except 
the warnings), but a scaler issue.

Carl Eugen