Deblurring

Deblurring is the process of removing blurring artifacts from images.

The blur K is typically modeled as point spread function and is convolved with a hypothetical sharp image S to get B, where both the S (which is to be recovered) and the point spread function K are unknown.

This is generally solved by the use of a regularization term to attempt to eliminate implausible solutions.

This problem is analogous to echo removal in the signal processing domain.

Nevertheless, when coherent beam is used for imaging, the point spread function can be modeled mathematically.