Visually Meaningful Image Encryption Scheme Based on DWT and Schur Decomposition

Figure 3

Grayscale image test results. (a) Plain image of Cameraman (256 × 256). (b) Encrypted image of (a). (c) Host image of Baboon. (d) Visual image. (e) Decrypted image. (f) Plain image of Lena (512 × 512). (g) Encrypted image of (f). (h) Host image of Pentagon. (i) Visual image. (j) Decrypted image.

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