High capacity digital image watermarking with increased number of blocks

Authors:
Anand Kunwar Singh;Prasanna Kumar Acharya;Basant Kumar
Affiliations:
Motilal Nehru National Institute of Technology, Allahabad, India;Motilal Nehru National Institute of Technology, Allahabad, India;Motilal Nehru National Institute of Technology, Allahabad, India
Venue:
Proceedings of the 2011 International Conference on Communication, Computing & Security
Year:
2011

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Abstract

In this paper a high embedding capacity lossless digital image watermarking technique based on histogram shifting is proposed. Different properties and values of histogram are manipulated to get the watermark image. In the proposed technique, embedding capacity is improved by increasing the number of blocks. The data are embedded into definite gray level of image histogram. This technique embeds more data and provides greater imperceptibly than the existing techniques. The simulation results have demonstrated the superiority of the proposed method over the existing techniques.