Based on previous research work on both digital watermarking and stereo video, a novel scheme for watermarking stereo video is introduced. Firstly, an adaptive watermarking model based on disparity vectors is proposed after analyzing the characteristics of stereo video. Then a new watermarking algorithm is introduced. Adaptive scheme and pre-encoding with low density parity check (LDPC) codes a...

Remarkable success has been recorded in the usage of digital watermarking which is aimed at protecting intellectual property multimedia content. In this paper, a new tone mapping attack-resistant high dynamic range (HDR) image zero-watermarking algorithm proposed. extraction stable and invariant features are extracted for efficient through application redundant discrete wavelet transform (RDWT)...

Robust digital image watermarking is an information security technique that has been widely used to solve several issues related mainly with copyright protection as well ownership authentication. In general terms, robust conceals a small signal called “watermark” in host form imperceptible human vision. The efficiency of conventional based on frequency domain depend directly the results perform...

The watermarking techniques for grayscale images can be easily extended to handle color images, for this purpose, watermark casting is done by generating three different watermark patterns SR, SG, SB, one for each RGB channel and modifying for each channel, the intensity of the pixels that belong to the corresponding sets AR, AG, AB. The watermark casting and detection procedures for color imag...

Many current watermarking algorithms insert data in the spatial or transform domains like the discrete cosine, the discrete Fourier, and the discrete wavelet transforms. In this paper, we present a data-hiding algorithm that exploits the singular value decomposition (SVD) representation of the data. We compute the SVD of the host image and the watermark and embed the watermark in the singular v...

With the advance of technologies such as the Internet, Wi-Fi Internet availability and mobile access, it is becoming harder than ever to safeguard intellectual property in a digital form. Digital watermarking is a steganographic technique that is used to protect creative content. Copyrighted work can be accessed from many different computing platforms; the same image can exist on a handheld per...

This paper has brought forward an improved blind watermarking algorithm based on two-dimensional discrete wavelet transform. Watermarking applied binary image which had direct testing result and special meaning as watermark. Before embedded watermark, the watermarking image is pretreated by using Arnold scrambling to improve its security. According to the human eyes visual characteristic, it se...

In this paper a simple watermarking method for color images is proposed. The proposed method is based on watermark embedding for the histograms of the HSV planes using visual cryptography watermarking. The method has been proved to be robust for various image processing operations such as filtering, compression, additive noise, and various geometrical attacks such as rotation, scaling, cropping...

This paper proposes a blind watermarking algorithm for transferring medical data securely over the public network. A text watermark is embedded into (YCBCR) color channels of each medical video frame using Discrete Wavelet Transform and Principle Component Analysis. In our experiments, the watermark includes the electronic records for patients with three different sizes. Experimental results sh...

Digital image watermarking is the technology used to protect copy right information of multimedia objects. This paper presents a more secure method for copyright protection. In this scheme color image is decomposed into R, G, B channels and then DWT and DCT transformations are applied on these channels separately. The bits of watermark image are embedded into middle frequency coefficients of tr...