An image encryption tool based on the chaotic automorphism and Chirikov transformation
Muammer Çatak, Tofigh Allahviranloo · Journal of Mathematics and Computer Science · 2023
For some operations that use either color or gray-scale images the algorithms involving image encryption provide significant security. In this paper, a novel image encryption tool based on chaotic automorphism and the Chirikov transform is proposed. The lack of efficiency of the chaotic automorphism, such as ghost and miniature effects, is overcome with the help of the Chirikov transformation. Normalized pixel change rate, correlation coefficient, and histogram analysis are employed in order to validate the efficiency of the proposed method. According to the results, the proposed algorithm demonstrates its robustness against attacks based on statistical analysis. \begin{keyword}Encryption \sep CAT map \sep Chirikov transformation \sep image processing. \MSC{15-04 \sep 60G07