A secure and robust stereo image encryption algorithm based on DCT and Schur decomposition

Abstract

Security solutions of stereo images are always a major concern during the transmission and communication. In this manuscript, a simple yet efficient framework for encrypting stereo images is formulated using discrete cosine transform (DCT), generalized logistic map, Schur decomposition and magic square method. The framework initiated with the integration of DCT and generalized logistic map to unify both pair of images. This unified image is then encrypted using the Schur decomposition and magic square method. The various experiments and analysis have been done to explore the validity, proficiency and performance of the purport framework.

Keywords

• stereo image
• encryption and decryption
• discrete cosine transform
• generalize logistic map
• schur decomposition