Figure 7. Classification of a mammogram into Wolfe Patterns using textons. (a) A mammogram belonging to Wolfe class N1. (b) The texton "labelled" image of the mammogram. The texton histogram corresponding to this image is used to classify the image into the pattern Wolfe N1. This type of classification forms the basis of "next generation" computer-aided detection (CADe) and diagnosis (CADi) algorithms for digital mammography.