Visually Meaningful Image Encryption Scheme Based on DWT and Schur Decomposition

Figure 5

The key sensitivity test. (a) Plain image (512 × 512). (b) Host image. (c) Visual image. (d) Visual image with the change key. (e) Difference image estimated as the difference of images in (d)-(c). (f) Decrypted image (c) use of the keys of (d). (g) Decrypted image (d) using the keys of (c). (h) Decrypted image with the correct key.

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