Legacy ImageMagick Discussions Archive

Unfortunately, I can't figure this out. I might not know enough about color theory to figure this out. I just want to edit the CMYK values of a specific color channel but it seems like it is something that isn't possible to do. I'm now trying to do this with HSL and -modulate but I can't wrap my ...

I've changed -evaluate set to -evaluate add and it still isn't right. I'm trying to find more information about how this tool works and I've stumbled upon the following links: https://www.psdbox.com/tutorials/how-selective-color-works https://fstoppers.com/post-production/selective-color-possibly ...

So, I understand your code, but I'm still confused. In the tutorial, they edit the CMYK values of the color, in this example, the Magenta and Yellow values of the Yellow "spectrum" as so: http://s3.gomedia.us/wp-content/uploads/2013/10/gma-vsco-cam-tutorial-05a-color-adjustments.png But in your code ...

I've been trying for a few hours now to get a selective color adjustment tool working similar to the one that exists in Photoshop. I am translating this tutorial (http://gomedia.com/zine/tutorials/easy-to-accomplish-vsco-cam-effect-in-photoshop/) step by step to ImageMagick and haven't had any ...