Have a look at
http://xbiz.com/articles/print.php?article_idp=454
:-)
"Charles Gray" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> OK, here's the question-- how do I take a color image, and replace
> colors while keeping the shadows and brights intact.
> IE, if I wanted to take a brunette, and turn her into a blond, how
> would I do so in such a way that the shadows and highlights in the
> hair are kept intact?
> I believe it's some combinatio of layer and brush settings, but I
> don't know which. Obviously Darken does it if the undercoat is
> darker-- such as if you're coloring a peice of line art, but what
> about when you're dealing with both dark and lighter sectoins?
>