unsharpen

Verb

 * 1)  To render unsharp; to spoil the sharpness of (something).
 * 2)  To undo a sharpening operation on (an image).
 * 1)  To undo a sharpening operation on (an image).
 * 1)  To undo a sharpening operation on (an image).

Usage notes

 * Not to be confused with.