An overview of reversible watermarking techniques appeared in literature during the last five. Digital watermarking techniques have been indicated so far.reversible watermarking, reflecting recent progress, and provide some. reversible watermarking Figure 1: Flowcharts of conventional and reversible watermarking schemes process.from other types of digital watermarks, a reversible watermark has ...

Digital watermarking is an essential technique to add hidden copyright notices or secret messages to digital audio, image, or image forms. In this paper we introduce a new approach for digital image watermarking for real time applications. We have successfully implemented the digital watermarking technique on digital images based on 2-level Discrete Wavelet Transform and compared the performanc...

Digital watermarking is nothing but the technology in which there is embedding of various information in digital content which we have to protect from illegal copying. This embedded information to protect the data is embedded as watermark. In digital watermarking, a watermark is embedded into a cover image in such a way that the resulting watermarked signal is robust to certain distortion cause...

The digital watermarking provides the protection against the digital data copying, proceeding distributing among the unauthorized users using easily available software. This paper gives the comparative analysis of digital image watermarking in frequency domain. The parameters used to test the robustness and transparency of the watermarking algorithm are Normalized crosscorrelation coefficient (...

For effective digital rights management (DRM) of multimedia in the framework of embedded systems, both watermarking and cryptography are necessary. Here, we present a novel system in the form of a digital camera that embeds biometric data into an image. Incorporation of encryption and watermarking together in the digital camera will assist in protecting and authenticating image files and Waterm...

Digital watermarking technology is a very good method for protecting copyright. In this paper, in terms of requisition of imperceptibility and robustness of watermarking, the coefficient features of Discrete Cosine Transform (DCT) are introduced and a new image watermarking scheme based on Discrete Cosine Transform is proposed. Digital watermark is embedded in original image by subtle perturbat...

The copyright protection of digital content became a critical issue now a days. Digital image watermarking is one of the techniques used to protect digital content. A novel image watermarking approach based on back propagation neural network in DWT domain is proposed in this paper. The cover image is decomposed up to 3-levels using DWT. The bitmap is selected as a watermark. The back propagatio...

Digital watermarking is a simple and effective way to provide copyright protection. This paper proposes a robust and blind watermarking scheme for static images. It utilizes discrete wavelet transform and applies three coding methods according to the different characteristics of band coefficients: lattice code based on the communication principle, modification of insignificant coefficients base...