How to I get a threshold value from looking at histogram
3 views (last 30 days)
Youssef Khmou on 29 Mar 2015
Otsu's method exists as built in function with name graythresh, here is an example taken from Mathworks help page :
I = imread('coins.png');
level = graythresh(I);
BW = im2bw(I,level);
there might be other techniques to choose an adequate threshold.