A color image watermarking scheme based on affine transformation and S 4 permutation

2014 ◽  
Vol 25 (7-8) ◽  
pp. 2037-2045 ◽  
Author(s):  
Syeda Iram Batool ◽  
Tariq Shah ◽  
Majid Khan
Keyword(s):  
Affine Transformation ◽  
Color Image ◽  
Image Watermarking ◽  
Color Image Watermarking ◽  
Watermarking Scheme

A secure dual-color image watermarking scheme based 2D DWT, SVD and Chaotic map

2022 ◽  
Author(s):  
Kunshu Wang ◽  
Tiegang Gao ◽  
Daotao You ◽  
Xiangjun Wu ◽  
Haibin Kan
Keyword(s):  
Color Image ◽  
Image Watermarking ◽  
Chaotic Map ◽  
Color Image Watermarking ◽  
Dual Color ◽  
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

A Color Image Watermarking Algorithm

2013 ◽  
Vol 798-799 ◽  
pp. 733-736
Author(s):  
Xiu Hu Tan
Keyword(s):  
Color Image ◽  
Image Watermarking ◽  
False Alarm Probability ◽  
Reference Image ◽  
Secret Key ◽  
Color Image Watermarking ◽  
Matrix Operation ◽  
The Public ◽  
Color Features ◽  
Watermarking Scheme

Transparency and robustness are two conflicting requirements demanded by digital image watermarking for copyright protection and many other purposes. In this paper, a robust and transparent watermarking scheme for color images is proposed. The color features for the human visual system are utilized to design the color watermarking algorithm. The basic idea is to embed the invisible watermark into the color image by brightness adjustment and feature component choice. And through analysis and constraint the conditions, we can obtain a high detection probability and security, a low false alarm probability. In the same time, because we use different matrix operation to embed (secret key) and extract (public key) a watermark, we are able to release all information for the public, except the secret key. Our method can extract the embedded watermark without reference image. The robustness of our method is demonstrated by various attacks through computer simulation.

Quantum color image watermarking based on Arnold transformation and LSB steganography

2018 ◽  
Vol 16 (03) ◽  
pp. 1850021 ◽  
Author(s):  
Ri-Gui Zhou ◽  
Wenwen Hu ◽  
Ping Fan ◽  
Gaofeng Luo
Keyword(s):  
Nearest Neighbor ◽  
Color Image ◽  
Interpolation Method ◽  
Image Watermarking ◽  
Image Size ◽  
Least Significant Bit ◽  
Color Image Watermarking ◽  
Preprocessing Technique ◽  
Carrier Image ◽  
Watermarking Scheme

In this paper, a quantum color image watermarking scheme is proposed through twice-scrambling of Arnold transformations and steganography of least significant bit (LSB). Both carrier image and watermark images are represented by the novel quantum representation of color digital images model (NCQI). The image sizes for carrier and watermark are assumed to be [Formula: see text] and [Formula: see text], respectively. At first, the watermark is scrambled into a disordered form through image preprocessing technique of exchanging the image pixel position and altering the color information based on Arnold transforms, simultaneously. Then, the scrambled watermark with [Formula: see text] image size and 24-qubit grayscale is further expanded to an image with size [Formula: see text] and 6-qubit grayscale using the nearest-neighbor interpolation method. Finally, the scrambled and expanded watermark is embedded into the carrier by steganography of LSB scheme, and a key image with [Formula: see text] size and 3-qubit information is generated at the meantime, which only can use the key image to retrieve the original watermark. The extraction of watermark is the reverse process of embedding, which is achieved by applying a sequence of operations in the reverse order. Simulation-based experimental results involving different carrier and watermark images (i.e. conventional or non-quantum) are simulated based on the classical computer’s MATLAB 2014b software, which illustrates that the present method has a good performance in terms of three items: visual quality, robustness and steganography capacity.

A New Color Image Watermarking Scheme in Discrete Wavelet Transform Domain

2012 ◽  
Vol 5 (2) ◽  
pp. 811-814
Author(s):  
Chen Yongqiang ◽  
Hu Hanping ◽  
Ling Hefei ◽  
Peng Lisen
Keyword(s):  
Wavelet Transform ◽  
Discrete Wavelet Transform ◽  
Color Image ◽  
Image Watermarking ◽  
Discrete Wavelet ◽  
Transform Domain ◽  
Color Image Watermarking ◽  
Watermarking Scheme
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