On Cluster Validity Indexes in Fuzzy and Hard Clustering Algorithms for Image Segmentation. - Moumen T. El-Melegy; Ennumeri A. Zanaty; Walaa M. Abd-Elhafiez; Aly A. Farag (ICIP (6), 2007)

Object-Based Hybrid Image Coding Scheme. - Usama Sayed Mohammed; Walaa M. Abd-Elhafiez (ICIP, 2010)

Color Image Compression Algorithm Based on the DCT Blocks - Walaa M. Abd-Elhafiez; Wajeb Gharibi (CoRR, 2012)

A Novel Image Encryption Scheme Based on Different Block Sizes for Grayscale and Color Images. - Omar Reyad; M. A. Mofaddel; Walaa M. Abd-Elhafiez; Mohamed Fathy (CoRR, 2018)

Image Encryption Algorithm Methodology Based on Multi-mapping Image Pixel. - Walaa M. Abd-Elhafiez; Omar Reyad; M. A. Mofaddel; Mohamed Fathy (AMLTA, 2019)

Medical image encryption via lifting method. - Walaa M. Abd-Elhafiez; Mohamed Heshmat (J. Intell. Fuzzy Syst., 2020)

Integrating Multi-Criteria Decision-Making Techniques in Assessing Renewable Energy Potential: A Case Study of Egypt. - Awatef Salem Balobaid; Walaa M. Abd-Elhafiez; Sayed M. Nagy; Doaa Wagdy Trabay (IEEE Access, 2024)