Fig. 3From: High-capacity reversible image steganography based on pixel value orderingCiphertext retrieval steps for the PVO steganography method. (1) Reading of the extra information. (2) Slicing of the stego image. (3) Ordering of block pixels. (4) Reading of the confidential information. (5) Restoration of the original pixels. (6) Restoration of the original pixelsBack to article page