@ARTICLE {9895,
author={D. R. Castillo and H. P. Cabrera and P.A. Assunção},
doi={10.1016/j.cam.2014.11.017},
journal={Journal of Computational and Applied Mathematics},
title={Edge detection based on Krawtchouk polynomials},
year={2015},
month={August},
volume={284},
number={0},
pages={244-250},
ISSN={0377-0427}
}