1. Kesavan, K. K., Kumar, M. R.: Optical color image encryption based on Hartley transform and double random phase encoding system. In: 2011 3rd International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT), pp. 1–3. IEEE (2011)
2. Kumar, M. R., Linslal, C. L., Pillai, V. M., Krishna, S. S.: Color image encryption and decryption based on jigsaw transform employed at the input plane of a double random phase encoding system. In: International Congress on Ultra Modern Telecommunications and Control Systems, pp. 860–862. IEEE (2010)
3. Kesavan, K. K., Kumar, M. R.: Optical data security using Hartley transform, pixel scrambling and chaos theory for images. In: 2011 3rd International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT), pp. 1–5. IEEE (2011)
4. Bezerra, J.I.M., Machado, G., Molter, A., Soares, R.I., Camargo, V.: A novel simultaneous permutation–diffusion image encryption scheme based on a discrete space map. Chaos Solitons Fractals 168, 113160 (2023)
5. Xian, Y., Wang, X., Zhang, Y., Yan, X., Leng, Z.: A novel chaotic image encryption with FSV based global bit-level chaotic permutation. Multimed. Tools Appl. 82(1), 407–426 (2023)