Pixel neighbors in 2d array (image) using Python

Question

I have a numpy array like this:

x = np.array([[1,2,3],[4,5,6],[7,8,9]])

I need to create a function let\'s call it \"neighbors\" with the f

Answer 1

By using max and min, you handle pixels at the upper and lower bounds:

im[max(i-1,0):min(i+2,i_end), max(j-1,0):min(j+2,j_end)].flatten()