A Note on the Use of (Gray Level,Local Average Gray Level) Space as an Aid in Threshold Selection.

摘要

Various methods have been proposed for improving the gray level histogram of an image so as to make it easier to select thresholds for segmenting the image. This note describes how (gray level, local average gray level) feature space can be used to define improved image histograms. The approach is analogous to that in an earlier note which made use of second-order gray level histograms('cooccurrence matrices') for similar purposes. (Author)