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Chapter 3. Noise and sharpening > Use blending modes to fix digital noise

Use blending modes to fix digital noise

Correcting images in Photoshop can be a tricky business as there's a degree of trial and error involved. Because of this, it's best to try to keep your changes to the file editable and not permanently embedded in the image. This way you can make adjustments with ease at any point in the process. Photoshop provides many ways to edit an image without permanently changing it, particularly when you're dealing with noise in an image from a digital camera. One of these techniques is blending modes, which is a layer feature of Photoshop. Using blending modes, you can set a normal layer to a variety of different blend settings to change the appearance of pixels on the layers below it. This gives you a nifty way to fix digital noise in your image without actually making permanent changes.


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