A Hybrid Approach for Enhancing the Security of Information Content of an Image

摘要

Recent advancements in communication technologies have resulted in sharing of most multimedia information through internet. Securing such information from eavesdroppers during communication is still challenging task. In this paper, a hybrid approach is proposed for securing the contents of an image. This hybrid approach is a combination of edge detection and encryption process. The proposed approach comprises three stages. In first stage, the input image is divided into two sub images, image with edges and image without edge information. Canny edge detection algorithm is used for detecting edges in the input image. In second stage, sub images obtained from previous stage are encrypted separately using crossover and mutation operations. The encrypted images are fused in the final stage. The performance of the proposed method is measured in terms of correlation coefficient and histogram. The results obtained are compared with method [1]. The comparative study reveals that the image processing technique can be combined with encryption process to provide different levels of security.