Questions about the technique of smoothing transitions between color fields within an image to combat the jagged or rough edges that appear due to aliasing. Anti-aliasing is used in digital photography, computer graphics, and many other applications.


In digital image processing, anti-aliasing is the term for a number of techniques used to combat the affects of aliasing.

Type with & without anti-aliasing

Anti-aliasing creates transition pixels between two or more areas of differing colors. The transition pixels are a blend of color and transparency based upon the surrounding color fields. These transition pixels help what would traditionally be seen as a "jagged", "stair-stepped", or "rough" edge appear as smooth and fluid to the human eye.

There are a number of techniques and methods to anti-aliasing—for example, supersampling and multisample anti-aliasing.