Figure 3
From: A coarse-to-fine approach to prostate boundary segmentation in ultrasound images
![Figure 3](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F1475-925X-4-58/MediaObjects/12938_2005_Article_130_Fig3_HTML.jpg)
Input membership function for locally adaptive contrast enhancement. It represents three terms for the fuzzy set "pixel intensity". Generally b is in the middle value of LocalMin and LocalMax, a is the middle values of LocalMin and b, and c is the middle value of LocalMax and b.