In this paper, a novel reversible data hiding (RDH) scheme for encrypted digital images using integer wavelet transform, histogram shifting and orthogonal decomposition is presented. This scheme takes advantage of the Laplacian-like distribution of integer wavelet high-frequency coefficients in high frequency sub-bands and the independence of orthogonal coefficients to facilitate data hiding operation in encrypted domain, and to keep the reversibility. Experimental results has demonstrated that this scheme outperforms all of other existing RDH schemes in encrypted domain in terms of higher PSNR at the same amount of payload. Compared with the state-of-the-arts, the proposed scheme can be applied to all natural images with higher embedding rate.

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independence embedding rate psnr rdh schemes reversible data hiding rdh scheme high frequency subbands orthogonal decomposition encrypted digital images reversibility integer wavelet transform histogram shifting laplacianlike distribution of integer wavelet highfrequency coefficients

Yun-Qing Shi,Lizhi Xiong,Zhengquan Xu,.An integer wavelet transform based scheme for reversible data hiding in encrypted images. 29 (3),1191–1202.

Yun-Qing Shi,Lizhi Xiong,Zhengquan Xu,"An integer wavelet transform based scheme for reversible data hiding in encrypted images" 29

Yun-Qing Shi,Lizhi Xiong,Zhengquan Xu,"An integer wavelet transform based scheme for reversible data hiding in encrypted images"