Legacy ImageMagick Discussions Archive

I thought I would be able to put it into a loop with no problems but I guess I was wrong. I can do commands within the loop, but when I try the code given in the first response it has a problem with +swap saying it wasn't expected at this time. I can do any other ImageMagick operation I've tried in ...

Instead of "rose:", put the name of a file. Or put %1 and call the BAT file with the filename as parameter. Or write a script that loops through the files. I don't use mogrify. I would use convert in a loop, although a loop is slower. If you use Windows, you will see plenty of examples of this on ...

Thank you very much for your response! The result definitely looks like what I'm going for. I'm pretty new to ImageMagick so sorry for asking, but how to I change the source image? I'd like to mogrify a few hundred images for an animation and everything I change gives me unexpected results

VLC media player has a filter option called Color Threshold where it can convert a video to greyscale except colors similar to a particular value (in my case red or FF0000). The result can be a bit like the effects in the movie Sin City but not as clean, which doesn't really matter to me. Is ...