anti-aliasing

• Anti-aliasing is one of those terms that a lot of long-time Photoshop users see in the Options bar,

options bar

aliasing (left) and anti-aliasing (right)

Image Source: https://helpx.adobe.com/photoshop/key-concepts/aliasing-anti-aliasing.html

what anti-aliasing does

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• anti-aliasing appears in some of the tools
• tools with anti-aliasing: elliptical marquee, rectangle marquee, lasso, magic wand, etc.

SOURCE:

https://helpx.adobe.com/photoshop/key-concepts/aliasing-anti-aliasing.html