What Is a Selection?

When you want to edit a portion of your image, you must first select the area with which you want to work. People who paint cars for a living make “selections” very much like the ones used in Photoshop. The painters carefully place masking tape and paper over areas they don’t want to paint (windows, tires, door handles, and so on). That way, they can freely spray the entire car with paint, knowing that the masked areas are protected from overspray. At the most basic level, a selection in Photoshop works in much the same way, but with a few additional advantages. In Photoshop, you can paint the car and leave the masked areas untouched, or you can paint only the masked areas and leave the rest of the car untouched. As you’ll ...

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