The increased reliance on digital images in various domains has led to a growing need for effective image encryption techniques. This study provides a thorough analysis of image encryption methods, providing an overview of their principles, advantages, and limitations. The review covers symmetric and asymmetric encryption algorithms, chaos-based encryption, visual cryptography, and transform domain techniques.
By exploring these techniques, researchers and practitioners gain valuable insights into their security, computational efficiency, and applicability in different scenarios. The comparative analysis helps in understanding the trade-offs involved in selecting the most suitable technique for specific requirements. The review also addresses challenges in image encryption, such as maintaining image quality, ensuring data integrity, and countering attacks.
The findings of this review aid in decision-making processes, enabling the selection of appropriate image encryption techniques for secure digital image communication and storage. Moreover, it highlights potential research directions and emerging trends, encouraging further improvements in image encryption technology.