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));

>>> 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