Dong Gyu Yeo , Byeong Man Kim , Hae Yeoun Lee

The KIPS Transactions:PartB , Vol. 18, No. 1, pp. 1-10, Feb. 2011
10.3745/KIPSTB.2011.18.1.1,   PDF Download:

Abstract

Reversible watermarking inserts watermark into digital media in such a way that visual transparency is preserved, which enables the restoration of the original media from the watermarked one without any loss of media quality. It has various applications, where high capacity and high visual quality are major requirements. This paper presents a new effective multi-round embedding scheme for the differential histogram-based reversible watermarking that satisfies high capacity requirements of the application. The proposed technique exploits the row-column cross scanning to fully utilize the locality of images when multi-round embedding phase to the message inserted image. Through experiments using multiple kinds of test images, we prove that the presented algorithm provides 100% reversibility, effectiveness of multi-round embedding, and higher visual quality, while maintaining the induced-distortion low.

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