Picture restoration deals with images that have been recorded in the presence
of one or more sources of degradation. There are many sources of degradation
in imaging systems. Some types of degradation affect only the gray levels of
the individual picture points, without introducing spatial blur; these are some-
times called point degradations. Other types which do involve blur are called
spatial degradations. Still other types involve chromatic or temporal effects.
In this chapter, we will only be concerned with point and spatial degradations.
Such degradations occur in a variety of applications. In aerial reconnaissance ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month, and much more.