http://redux.imagemagick.org/discussion ... php?t=7736
anthony wrote: Sounds like something that still needs to be expanded on in IM. prehaps you need to report this to the developers forum.
Would it be appropriate for -combine to use the current colorspace to determine how many images to combine and how to combine them? For instance, if the current colorspace were CMYK, -combine would gobble up the previous four images and combine them with CMYK math. Likewise for YUV, it would take three images and combine them as YUV. Is this a sensible way to add the feature or would it cause conflicts?