Added matlab binarization file

binarization/binarizer.m

@@ -0,0 +1,26 @@
+function out_im = binarizer(in_im, v, h)
+
+%This programs splits an image into 'v' blocks in vertical direction
+% and into 'h' blocks in horizontal direction. All the bloacks are equal.
+
+[x, y] = size(in_im); %size of the input image
+out_im = []; %output image
+
+for ii = 1:(v)
+    temp = [];
+    ranx = ((ii-1)*ceil(x/v)+1):(ii*ceil(x/v)); %horizontal range
+    if ii == v
+        ranx = (((ii-1)*ceil(x/v)+1):x);
+    end
+    for jj = 1:(h)
+        rany = ((jj-1)*ceil(y/h)+1):(jj*ceil(y/h)); %horizontal range
+        if jj == h
+            rany = (((jj-1)*ceil(y/h)+1):y);
+        end
+        t = graythresh(in_im(ranx,rany));
+        temp = cat(2,temp,imbinarize(in_im(ranx,rany),t));
+    end
+    out_im = cat(1,out_im,temp);
+end
+
+end