Improved technique for hiding data in a colored and a monochrome image. Periodicals of Engineering and Natural Sciences, [S. l.], v. 8, n. 2, p. 1000–1010, 2020. DOI: 10.21533/pen.v8.i2.1125. Disponível em: https://pen.ius.edu.ba/index.php/pen/article/view/1125. Acesso em: 22 apr. 2026.