Robust Secure Color Image Watermarking Using 4D Hyperchaotic System, DWT, HbD, and SVD Based on Improved FOA Algorithm

by Hira Nazir, Imran Sarwar Bajwa, Muhammad Samiullah, Waheed Anwar, Muhammad Moosa
Published 2021-01-01

An Image Encryption Scheme Based on DNA Computing and Multiple Chaotic Systems

by Muhammad Samiullah, Waqar Aslam, Hira Nazir, M. Ikramullah Lali, Basit Shahzad, Muhammad Rafiq Mufti, Humaira Afzal
Published 2020-01-01