Legacy ImageMagick Discussions Archive

try reading the input image before the options You are right, I should have written it this way, but the artifacts are still there when I rearrange it unfortunately. I suspect the banding problem comes from quantum=8 in ordinary jpegs, but it's hard to tell without an example. I does look like that ...

Hi, I'm using -color-matrix on a bunch of images to change colour temperature slightly: convert -quality 94 -color-matrix "1.0 0 0 0 0.975 0 0 0 0.95" x.jpg y.jpg Problem is, in blue sky areas, this sometimes causes patchy colours and banding issues. However, and this is the strange part, if I ...