On 4 September 2015 at 15:45, Paul B Mahol <one...@gmail.com> wrote: > On 9/4/15, Carl Eugen Hoyos <ceho...@ag.or.at> wrote: > > Carles Vila <cvilad <at> gmail.com> writes: > > > >> Here's the command line. I had to include > >> -pix_fmt xyz12le in order to have it detect > >> xyz of the jpeg2000. > >> However, the output still looks posterized. > > > > I am not sure if I understand the word posterized, > > but concerning "still" the output looks very > > different here if I omit -pix_fmt xyz12 > > Compare native decoder output with one from ImageMagick. > > > > > Carl Eugen > > > > _______________________________________________ > > ffmpeg-user mailing list > > ffmpeg-user@ffmpeg.org > > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > > > _______________________________________________ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/ffmpeg-user >
Hi Carl Eugen, Sorry, I'm not explaining too clearly. If I omit -pix_fmt xyz12 the output looks weird (greenish) because no colour transformation is done. This is absolutely normal. If I include -pix_fmt xyz12, the colours are OK, but the dark levels seem posterized. by posterized I mean this: https://svi.nl/PosterizationArtifacts Let me know if you see it too, it is particularly obvious at the very beginning, when the blue light comes in. What I wanted to point out is that in the output which is not color-transformed, this artifact is less noticeable. Thanks _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user