Multi-channel watermarking scheme based on HVS for color image in DCT domain

2010 ◽  
Vol 29 (12) ◽  
pp. 3431-3433
Author(s):  
Yi-lin BEI ◽  
Sheng-ju SANG
Keyword(s):  
Color Image ◽  
Dct Domain ◽  
Watermarking Scheme

A robust image watermarking scheme in DCT domain based on adaptive texture direction quantization

2018 ◽  
Vol 78 (7) ◽  
pp. 8075-8089 ◽  
Author(s):  
Han Fang ◽  
Hang Zhou ◽  
Zehua Ma ◽  
Weiming Zhang ◽  
Nenghai Yu
Keyword(s):  
Image Watermarking ◽  
Dct Domain ◽  
Robust Image ◽  
Watermarking Scheme

Quantum color image watermarking based on fast bit-plane scramble and dual embedded

2018 ◽  
Vol 16 (07) ◽  
pp. 1850060 ◽  
Author(s):  
Ri-Gui Zhou ◽  
Peng Liu Yang ◽  
Xing Ao Liu ◽  
Hou Ian
Keyword(s):  
Nearest Neighbor ◽  
Color Image ◽  
Interpolation Method ◽  
Image Watermarking ◽  
Extraction Process ◽  
Watermark Image ◽  
Color Image Watermarking ◽  
Encryption Algorithms ◽  
Bit Plane ◽  
Watermarking Scheme

Most of the studied quantum encryption algorithms are based on square images. In this paper, based on the improved novel quantum representation of color digital images model (INCQI), a quantum color image watermarking scheme is proposed. First, INCQI improved from NCQI is used to represent the carrier and watermark images with the size [Formula: see text] and [Formula: see text], respectively. Secondly, before embedding, the watermarking needs to be preprocessed. That is, the watermark image with the size of [Formula: see text] with 24-qubits color information is disordered by the fast bit-plane scramble algorithm, and then further expanded to an image with the size [Formula: see text] with 6-qubits pixel information by the nearest-neighbor interpolation method. Finally, the dual embedded algorithm is executed and a key image with 3-qubits information is generated for retrieving the original watermark image. The extraction process of the watermark image is the inverse process of its embedding, including inverse embedding, inverse expand and inverse scrambling operations. To show that our method has a better performance in visual quality and histogram graph, a simulation of different carrier and watermark images are conducted on the classical computer’s MATLAB.

A novel color image watermarking scheme in nonsampled contourlet-domain

2011 ◽  
Vol 38 (3) ◽  
pp. 2081-2098 ◽  
Author(s):  
Pan-Pan Niu ◽  
Xiang-Yang Wang ◽  
Yi-Ping Yang ◽  
Ming-Yu Lu
Keyword(s):  
Color Image ◽  
Image Watermarking ◽  
Color Image Watermarking ◽  
Watermarking Scheme

Spatio-Temporal Just Noticeable Distortion Model Guided Video Watermarking

2010 ◽  
Vol 2 (4) ◽  
pp. 16-36
Author(s):  
Yaqing Niu ◽  
Sridhar Krishnan ◽  
Qin Zhang
Keyword(s):  
Video Watermarking ◽  
Original Video ◽  
Temporal Modulation ◽  
Visual Model ◽  
Visual Models ◽  
Dct Domain ◽  
Just Noticeable Distortion ◽  
Spatio Temporal ◽  
Improved Performance ◽  
Watermarking Scheme

Perceptual Watermarking should take full advantage of the results from human visual system (HVS) studies. Just noticeable distortion (JND), which refers to the maximum distortion that the HVS does not perceive, gives a way to model the HVS accurately. An effective Spatio-Temporal JND model guided video watermarking scheme in DCT domain is proposed in this paper. The watermarking scheme is based on the design of an additional accurate JND visual model which incorporates spatial Contrast Sensitivity Function (CSF), temporal modulation factor, retinal velocity, luminance adaptation and contrast masking. The proposed watermarking scheme, where the JND model is fully used to determine scene-adaptive upper bounds on watermark insertion, allows providing the maximum strength transparent watermark. Experimental results confirm the improved performance of the Spatio-Temporal JND model. The authors’ Spatio-Temporal JND model is capable of yielding higher injected-watermark energy without introducing noticeable distortion to the original video sequences and outperforms the relevant existing visual models. Simulation results show that the proposed Spatio-Temporal JND model guided video watermarking scheme is more robust than other algorithms based on the relevant existing perceptual models while retaining the watermark transparency.

scholarly journals Cryptanalysis and Improvement of the Robust and Blind Watermarking Scheme for Dual Color Image

2015 ◽  
Vol 2015 ◽  
pp. 1-10
Author(s):  
Hai Nan ◽  
Bin Fang ◽  
Weibin Yang ◽  
Jiye Qian ◽  
Ming Li ◽  
...  
Keyword(s):  
Theoretical Analysis ◽  
Color Image ◽  
Color Images ◽  
The Internet ◽  
Blind Watermarking ◽  
Watermark Image ◽  
Dual Color ◽  
Improvement Measure ◽  
Original Scheme ◽  
Watermarking Scheme

With more color images being widely used on the Internet, the research on embedding color watermark image into color host image has been receiving more attention. Recently, Su et al. have proposed a robust and blind watermarking scheme for dual color image, in which the main innovation is the using of two-level DCT. However, it has been demonstrated in this paper that the original scheme in Su’s study is not secure and can be attacked by our proposed method. In addition, some errors in the original scheme have been pointed out. Also, an improvement measure is presented to enhance the security of the original watermarking scheme. The proposed method has been confirmed by both theoretical analysis and experimental results.

Robust watermarking scheme for color image based on quaternion-type moment invariants and visual cryptography

2016 ◽  
Vol 48 ◽  
pp. 12-21 ◽  
Author(s):  
Zhuhong Shao ◽  
Yuanyuan Shang ◽  
Rui Zeng ◽  
Huazhong Shu ◽  
Gouenou Coatrieux ◽  
...  
Keyword(s):  
Color Image ◽  
Visual Cryptography ◽  
Moment Invariants ◽  
Robust Watermarking ◽  
Quaternion Type ◽  
Watermarking Scheme
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