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Technique 17: Enhancing Images with Blending Modes
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Applying luminosity
Fading filter effects
Creating grainy shadows
This technique zeroes in on another powerful Photoshop feature — blending modes. What is a blending mode? I thought you’d never ask. Suppose that you’re using two layers and you select a blending mode for the upper layer. The blending mode defines the way pixels on the upper, active layer affect the appearance of the pixels on the layer immediately below it. Some blending modes affect lighter pixels, some affect darker pixels, and some affect neutral tones. When you think about blending modes, remember this: Blending modes are all about how the color being applied interacts with existing color.This may all seem a bit mysterious, and if you are a “show me” person like I am, you want to see what blending modes can really do. Because Photoshop has 25 blending modes, I can’t show them all in a few short pages. However, I take you through which tools and dialog boxes make blending modes available, and how blending modes affect changes to pixels when they’re applied. Then, I focus on a few blending modes and show you how to use them. My one directive throughout this technique is don’t hesitate to experiment! A blending mode that you think can’t possibly work may give you some really cool results.
