Secure Image Authentication Scheme Using Double Random-Phase Encoding and Compressive Sensing

Figure 4

Detailed experimental results for the encryption and hiding. (a) Input image; (b) phase image by DRPE; (c) binary image by quantization; (d) VQ image reconstructed by preshared codebook; (e) error matrix between (a) and (d); (f) permuted error matrix with ; (g) measurements by CS; (h) combined image; (i) permuted image with ; (j) the final encrypted and hidden image with .

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