mmdcookies
Detect broken rounded biscuits.

The input image is read.

a = mmreadgray('cookies.tif');

mmshow(a);

a

Convert to binary objects by thresholding

b = mmthreshad(a, uint8(100));

Warning: upcasting image from scalar to uint8

mmshow(b);

b

The tophat of the binary image by an octagon disk with a radius fits the good biscuit but does not fit in the broken biscuit can detect the broken one.

c = mmopenth(b,mmsedisk(55,'2D','OCTAGON'));

mmshow(c);

c

Clean the residues from the octagon disk and the rounded shaped biscuits by eliminating small connected regions

d = mmareaopen(c,400);

mmshow(d);

d

Display the detected broken biscuit

mmshow(a,d);

a,d