A data-hiding scheme for binary images with content-based hiding rates

Authors:
Phen-lan Lin;Po-Whei Huang
Affiliations:
Department of Computer Science and Information Engineering, Providence University, Taichung, Taiwan;Department of Computer Science, National Chung Hsing University, Taichung, Taiwan
Venue:
SIP'06 Proceedings of the 5th WSEAS international conference on Signal processing
Year:
2006

Citing 2
Cited 0

An Adaptive Data Hiding Technique for Binary Images

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Data hiding in binary image for authentication and annotation

IEEE Transactions on Multimedia

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Abstract

A block-based information hiding scheme that hides more information into more complex blocks for binary images is presented. The block complexity is measured by entropy and DCT spectrum and a set of secret keys that categorizes block complexity prevents correct decoding from unauthorized users. The embedded bits are selected based on a CPT coding algorithm and a WL flippability score so that good balance between imperceptibility and hiding capacity can be achieved. Compared to other schemes, the distortion measure DRD of our scheme grows slower with hidden amount than that of either CPT or its enhance version CPT1. Such DRD advantage becomes very significant when compared to scheme WL.