A Reversible Watermarking Scheme for High-Fidelity Applications

In this paper, we present a reversible watermaking scheme for high-fidelity applications An improved histogram shifting technique is employed in this method to increase the embedding capacity and amehorate the visual quality of the watermarked image The method ensures that, the modification of each pixel value is at most 1 m single pass embedding In addition two criteria, "near-lossless" and "almost-lossless", are used to evaluate the fidelity of our method Experimental results and performance comparison with other recently proposed reversible watermarking schemes clearly demonstrate that our method outperforms the previous oneshttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000280386100054&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701Computer Science, Artificial IntelligenceComputer Science, Theory & MethodsEngineering, Electrical & ElectronicEICPCI-S(ISTP)

Watermarking capacity control for dynamic payload embedding

Despite significant improvements in capacity-distortion performance, a computationally efficient capacity control is still lacking in the recent watermarking schemes. In this paper, we propose an efficient capacity control framework to substantiate the notion of watermarking capacity control to be the process of maintaining “acceptable” distortion and running time, while attaining the required capacity. The necessary analysis and experimental results on the capacity control are reported to address practical aspects of the watermarking capacity problem, in dynamic (size) payload embedding