luminance mask

In Lesson 8 from Photoshop CS4 Channels & Masks One-on-One, Deke proves that not all masks require arduous, meticulous hand work and complicated sets of steps. (I know, I can't believe this is our same Deke, either.) Here, Deke gives your brain (and fingers) a bit of a rest by showing you how to use "found" channel information to create masks with very little effort. Read more »