An Optimized Image Encryption Scheme, Leveraging the Arnold Transform and Chaotic Map
Bhavana Sharma, Hukm Singh, Mehak Khurana · International Journal of convergence in healthcare · 2023
The traditional approach to image encryption faces significant challenges and issues, including inadequatesafety, image degradation, low latency, low-key sensitivity, diffusion, and strong correlation. To address theseshortcomings, a new image encryption algorithm is proposed in this work. The algorithm uses a combination ofDiscrete Cosine Transform (DCT) and Arnold transform along with chaotic scrambling to enhance the imagesecurity. The two-level encryption approach performs transformations in the position of each pixel withoutchanging their values or statistical features. The proposed algorithm is evaluated and shown to offer severaladvantages, including robust performance, statistical efficacy, high key sensitivity, picture security, and real-timeperformance. Overall, the proposed algorithm represents a significant improvement over the traditional approachto image encryption.