Legacy ImageMagick Discussions Archive

Impressive. I think I have to learn a lot more to understand color spaces as well as IM. Many thanks for your help.

As you can see at the Wikipedia page http://en.wikipedia.org/wiki/YUV the "colour" is calculated from the RGB. If I want to colorize I need to know the RGB values of each pixel, calculate the UV channels and write to a file. JPEG uses a similar formula. As IM "knows" how it works, I thougth there ...

do you want somehow to false colorize each channel? Yes, that is what I want. The Y component is a grayscale image. That ist fine. But for the two croma components I want the coloured version, as in the links I provided. In separated RGB-channels this can be done with -colorize. But what to do in ...

Hi, With the following code I was able to convert a RGB image and split it into its YUV components. But I don not want the coloured version of the croma components and not the grayscale version. convert rgb.png -colorspace YUV -sampling-factor 4:2:2 -separate YUV.png Examples for what I want to do ...