John David Haiducek wrote:
>
> I had thought that Photoshop's "Lighten" mode did addition. Am I wrong
> about that?

Try 50% gray bg layer + 50% gray lighten layer. It's not white.
I just tried all the modes in 5.5 and none of them was additive.

The only way to add images is via Image/Calculations but it's
not good for interactive editing.


_____________
Kari Kivisalo

Post a reply to this message