Steganography Algorithm Based on the Nonlocal Maximum Likelihood Noise Estimation for Mobile Applications

Figure 1

Image pairings formed for the experiment done with the proposed steganography algorithm. Cover images: (a) boat (1024 x 768 pixels); (c) sphinx (1024 x 768 pixels); (e) paradise (1024 x 768 pixels); (g) prayer (1024 x 768 pixels); (i) mountain (1024 x 768 pixels); (k) fire (1024 x 768 pixels); (m) wood fire (1024 x 768 pixels); and (o) lena (256 x 256 pixels). Images to be hidden: (b) Agfa (712 x 534 pixels); (d) snow (712 x 534 pixels); (f) desert (1024 x 768 pixels); (h) skullcap (1024 x 768 pixels); (j) landscape (1024 x 768 pixels); (l) mosque (1024 x 768 pixels); (n) cactus (576 x 768 pixels); and (p) mandrill (256 x 256 pixels).

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