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The Photoshop® CS Book for Digital Photographers by Scott Kelby

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Lab Color Sharpening

This sharpening technique is probably the most popular technique with professional photographers because it helps to avoid the color halos that appear when you add a lot of sharpening to a photo. And because it helps to avoid those halos, it allows you to apply more sharpening than you normally could get away with.

Step One.
Open the photo you want to sharpen using Lab sharpening.

© BRAND X PICTURES

Step Two.
Go to the Channels palette and you can see that your RGB photo is made up of three channels—a ...

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