LESZCZYŃSKI, Mariusz. Image Preprocessing for Illumination Invariant Face Verification. Journal of Telecommunications and Information Technology, Warsaw, Poland, v. 42, n. 4, p. 19–25, 2010. DOI: 10.26636/jtit.2010.4.1092. Disponível em: https://www.jtit.pl/jtit/article/view/1092. Acesso em: 18 aug. 2026.