Multiple color image encryption based on cascaded quaternion gyrator transforms

Yunfei Wang, Yuanyuan Shang, Zhuhong Shao, Yan Zhang, Gouenou Coatrieux, Hui Ding, Tie Liu

Abstract: Highlights•This paper designed a multiple color image encryption method.•The introduced method applied quaternion Gyrator transform in cascaded encryption structure.•Vortex phase mask and chaotic map reduce space consumption and increase security.