i am working on breaking of image into parts in matlab.. when sub parts of images came to me then there are some black(0 vales) matrices(3*3,or 5*5).i need help how i can avoid these sub-images (or how to use other sub-image excepts these)

I am student of M.Phil in QAU Islamabad Pakistan.I need help.i am working on breaking of image into parts in matlab.. when sub parts of images came to me then there are some black(0 values) matrices(3*3,or 5*5). i need help how i can avoid these sub-images (or how to use other sub-image excepts these)

Answer 1

[Walter Roberson]

if nnz(TheSubmatrix) == 0
  return;   %or whatever to avoid doing processing
end