Changing cloak color in portrait

[Walking Bore]

I borrowed the Lich portraits from TRoW (I think that's ok, because it's mainline, but if not, I'd like to ask the author now: can I use those portraits?) for my campaign, but I have eight different Liches in my story, and I'd like their cloaks to be different colors. How can I change the color of the cloak, while preserving everything else (texture, shadow, bone color, face, etc.)?

Thank you.

[turin]

Using GIMP, mess with the options in Layer -> Colors until it does what you want. The relevant option here is, I think, "levels", but I'm not sure.

[Darth Fool]

Or, you could just do it in WML using the RC image path function:

http://www.wesnoth.org/forum/viewtopic. ... 535#194535

[turin]

Or, you could just do it in WML using the RC image path function:

http://www.wesnoth.org/forum/viewtopic. ... 535#194535

Hm... IIRC, that doesn't work for portraits, usually, because there are an ungodly number of colors and there is usually no real boundary between the "tcolored" portion and the rest of the image. The colors kind of blend together. You could always try though, I suppose.

[zookeeper]

It's probably much easier to edit the image than try to figure out the RC stuff for recolouring.

[Sgt. Groovy]

You can select the areas to change with "magic wand" or "select by color" tools (if they are of distinct enough colours), and then rotate the colourspace in levels->colors->hue-saturation. This will change the colour but preserve the luminance.

[Darth Fool]

Or, you could just do it in WML using the RC image path function:

http://www.wesnoth.org/forum/viewtopic. ... 535#194535

Hm... IIRC, that doesn't work for portraits, usually, because there are an ungodly number of colors and there is usually no real boundary between the "tcolored" portion and the rest of the image. The colors kind of blend together. You could always try though, I suppose.

Well, I did a quick check and there are only 8133 different colors in the lich portrait as compared to 165 colors in the elvish champion sprite (I love perl & image magick!). Still, 8133 is probably more than is handy to use in WML. I might create a quick script to generate a color palette from an image which would make such an endeavor doable, but that is also likely to still be unwieldy. Another possibility is to do what the gimp and other programs do on selecting like colors and add a fuzz factor to a new image path function FRC (fuzzy recolor) where you have a third parameter that determines how closely a color needs to match one of the palette colors to be converted.

[Walking Bore]

Well, by using hue-saturation without selecting anything, I got this, which seems to work well enough; I can do the exact same thing for 5 other colors. Thank you!