A reversible data hiding method with contrast enhancement for medical images

Document Type

Article

Publication Date

7-2-2015

Abstract

Abstract In this paper, a reversible data hiding method with contrast enhancement is presented for medical images. Firstly, image background segmentation is performed and the principal gray-scale values in the segmented background are identified. By excluding the corresponding histogram bins from being expanded for data hiding, the contrast of region of interest (ROI) in medical images can be selectively enhanced. Considering the characteristics of pixel distribution, we develop a new pre-processing strategy to reduce the visual distortions that may be caused. With the proposed method, an original image can be exactly recovered from the corresponding enhanced image by hiding the side information within it. The experimental results on a set of medical images show that the visibility of ROI can be improved. Compared with the previous method, the proposed method can achieve more contrast enhancement effects and better visual quality for medical images.

Identifier

84933529390 (Scopus)

Publication Title

Journal of Visual Communication and Image Representation

External Full Text Location

https://doi.org/10.1016/j.jvcir.2015.06.010

e-ISSN

10959076

ISSN

10473203

First Page

146

Last Page

153

Volume

31

Grant

61100169

Fund Ref

National Natural Science Foundation of China

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