Abstract
Reversible data hiding can embed secret data into the cover image to cheat hackers, thereby avoiding the interception attack. The previous methods modify non-embeddable pixels to create hiding spaces, which decreases the quality of the stego image. In order to improve the image quality, we keep the non-embeddable pixels and use a few flag bits to discriminate between the embedded pixels and the non-embeddable pixels. Experimental results showed that the proposed method can achieve better image quality than the reversible steganographic methods that proposed recently.
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Chang, CC., Huang, YH. & Lu, TC. A difference expansion based reversible information hiding scheme with high stego image visual quality. Multimed Tools Appl 76, 12659–12681 (2017). https://doi.org/10.1007/s11042-016-3689-3
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DOI: https://doi.org/10.1007/s11042-016-3689-3