Access to eBooks is limited to institutions that have purchased or currently subscribe to the SPIE eBooks program. eBooks are not available via an individual subscription. SPIE books (print and digital) may be purchased individually on SPIE.Org.

Contact your librarian to recommend SPIE eBooks for your organization.
Chapter 4:
How Do You Train the Filter for a Task?
Abstract
At this stage, the reader might be asking the obvious question of why do we need to restore an image if the ideal original is available? In practice, a filter is used that has been designed on a representative training set. This means that examples similar to the image to be restored must be produced in some way. In the case of a fax machine, this is easy - a test image would simply be passed through the same process. The same is true for resolution changing and OCR examples discussed in the previous chapter. For old film restoration and other processes, it can be more difficult to recreate an ideal image for training. A section at the end of this chapter deals with this subject in more detail.
Online access to SPIE eBooks is limited to subscribing institutions.
CHAPTER 4
14 PAGES


SHARE
Back to Top