On 22.11.2008, at 01:15, Matthias Korn wrote:
Hi,
thanks for your hints. I also found ColorForm>>replaceColor:with: which does what you describe. But it is unfortunately not what I was looking for. I wasn't very clear in my original post:
I (now) have a gray-scale image which I want to colorize, that is I want to change the hue of the image and not just replace a color with another (or floodfill for that matter).
Hope you guys have some ideas. I tried searching with the Method Finder, but my poor english didn't take me very far.
Use a color map. Your grayscale image could be 8 bits, so with a 256 entries palette you can map that to any color(s) you want. Color maps are used in ColorForm, or directly with BitBlt.
- Bert -