MATLAB: How to get the Euler number of a binary matrix

Question

Hi , i`ve never programmed in matlab before and I want to calculate the Euler Number of a binary matrix such as

0001000

0001000

0001000

0001000

I hope that my question is clear.

Thank You.

Answer 1

Try this (if you have the Image Processing Toolbox):

measurements = regionprops(binaryMatrix, 'EulerNumber');
EulerNumbers = [measurements.EulerNumber];