Spatial Resolution Conversion Using  Paired Increasing Operators

doi:10.1117/PM29.ch9

Spatial Resolution Conversion Using Paired Increasing Operators

Book: Enhancement and Restoration of Digital Documents: Statistical Design of Nonlinear Algorithms

Author(s): Robert P. Loce, Edward R. Dougherty

Published: 1997

https://doi.org/10.1117/PM29.ch9

Author Affiliations +

Abstract

There is typically a great logic cost advantage in implementing an increasing filter versus a nonincreasing filter. An increasing filter often performs nearly as well as a nonincreasing filter if the required operation is an extensive or antiextensive mapping. Spatial resolution conversion typically requires a general (neither antiextensive nor extensive) image mapping. One approach is to represent a general mapping by a pair of extensive and antiextensive operators. This chapter presents a paired-erosion-based-filter architecture for performing the general image mappings required for optimal spatial resolution conversion. One member of the pair is an antiextensive operator while the other is extensive.