The most important issues in video watermarking are invisibility of the watermark and the resilience of watermarking to attacks. The area of video watermarking has focused primarily on the problem of robustness to geometric attacks, while discounting the problem of more sophisticated attackers. So to improve the robustness of watermark for A new digital watermarking algorithm, for based on LDPC...

The copyright protection of digital content became a critical issue nowadays. Digital image watermarking is one of the techniques used to protect digital content. In this paper two novel approaches are compared to embed watermark into the host image using quantization based on Back Propagation Neural Network (BPNN), and Dynamic Fuzzy Inference System (DFIS). The cover image is decomposed up to ...

In this paper, methods for embedding watermark into digital video are presented. A watermark is a signal added to digital data such as audio, video and still images that can be detected or extracted later. The existence of such a watermark can be determined only through a watermark extraction or detection algorithm. Video watermarking is a process of watermark the sequence of video frames. Vide...

In this paper, a non-blind watermarking technique has been proposed where a grayscale watermark is embedded. In the embedding process, first the host image is decomposed by wavelet transform and a middle frequency subband is selected where the watermark is embedded. Then, both the watermark and the selected subband are encoded by BTC-PF method. For each block, BTC-PF method returns quantization...

In order to reduce the impact of watermark embedding on the perceptual fidelity of the marked signal, watermarking systems process the generated watermark to match it to the local properties of the underlying host signal prior to embedding. However, this adaptation process could distort the watermark, affecting its robustness and information content. In this paper, a new watermark coding techni...

In this paper we have proposed digital watermarking scheme for halftone images based on visual cryptography scheme. The scheme does not embed the watermark directly on the halftone image instead watermark will be divided into the parts called as shares. The scheme not only protects the watermark but also provides an effective copyright protection scheme. At the time of watermark embedding verif...

here it introduces an efficient multi-resolution watermarking methodology for copyright protection of digital images. By adapting the watermark signal to the wavelet coefficients, the proposed method is highly image adaptive and the watermark signal can be strengthen in the most significant parts of the image. As this property also increases the watermark visibility, usage of the human visual s...

In this paper a novel spatial domain LSB based watermarking scheme for color Images is proposed. The proposed scheme is of type blind and invisible watermarking. Our scheme introduces the concept of storing variable number of bits in each pixel based on the actual color value of pixel. Equal or higher the color value of channels with respect to intensity of pixel stores higher number of waterma...

In this study, we propose a new spread spectrum audio watermarking algorithm that embeds linear chirps as watermark messages. Different chirp rates, i.e., slopes on the time-frequency (TF) plane, represent watermark messages such that each slope corresponds to a different message. We extract the watermark message using a line detection algorithm based on the Hough-Radon transform (HRT). The HRT...

In this paper, a digital video watermarking algorithm is proposed. We present a novel DWT-based blind digital video watermarking scheme with scrambled watermark and error correcting code. Our scheme embeds different parts of a single watermark into different scenes of a video under the wavelet domain. To increase robustness of the scheme, the watermark is refined by the error correcting code, w...