H. ABBAS, Nidaa. The Quincunx Filter-Based Sharp Frequency Localized Contourlet Transform for Image Denoising. Journal of Engineering and Sustainable Development, Baghdad, Iraq, v. 15, n. 2, p. 1–11, 2011. Disponível em: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1381.. Acesso em: 20 apr. 2025.