Section 5: Retouching Tools
The Photoshop retouching tools works on the principal of taking information from existing pixels and altering them to create a particular effect. It is important to remember that the retouching tools employ destructive editing. This means that the original pixels are being ‘destroyed’ and replaced by ‘new’ pixels. To enable the easy roll back of changes to our image, Photoshop has a few very useful features: History Palette, History Brush and Snapshot.
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