Convolution matrix for diagonal motion blur

Question

I know my question is not really a programming question but it came out of programming need. Does anyone happen to know the convolution matrix for diagonal motion blur. 3x3, 4x4 or 5x5 are all good.

Thanks,

Answer 1

This is 5x5:

   0.22222   0.27778   0.22222   0.05556   0.00000
   0.27778   0.44444   0.44444   0.22222   0.05556
   0.22222   0.44444   0.55556   0.44444   0.22222
   0.05556   0.22222   0.44444   0.44444   0.27778
   0.00000   0.05556   0.22222   0.27778   0.22222

I basically drew a diagonal line, and then blurred it a little.