Picture Processing Using One-Dimensional Implementations of Discrete Planar Filters.

摘要

The problem of implementing a two-dimensional recursive filter as a one-dimensional recursive filter is examined. The results of the present paper show that the exact one-dimensional implementation of a planar recursive filter is a time-varying filter. However,planar filters may be approximated by one-dimensional,time-invariant recursive filters. The frequency response,stability,and storage requirements of the approximate filters are derived and illustrated. (Author)