scholarly journals Blind Color Image Watermarking Using Fan Beam Transform and QR Decomposition

Symmetry ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 486
Author(s):  
Pranab Kumar Dhar ◽  
Pulak Hazra ◽  
Tetsuya Shimamura
Keyword(s):  
Color Image ◽  
State Of The Art ◽  
Signal To Noise Ratio ◽  
Image Watermarking ◽  
Triangular Matrix ◽  
Structural Similarity ◽  
Qr Decomposition ◽  
Original Image ◽  
Color Image Watermarking ◽  
Multimedia Contents

Digital watermarking has been utilized effectively for copyright protection of multimedia contents. This paper suggests a blind symmetric watermarking algorithm using fan beam transform (FBT) and QR decomposition (QRD) for color images. At first, the original image is transferred from RGB to L*a*b* color model and FBT is applied to b* component. Then the b*component of the original image is split into m × m non-overlapping blocks and QRD is conducted to each block. Watermark data is placed into the selected coefficient of the upper triangular matrix using a new embedding function. Simulation results suggest that the presented algorithm is extremely robust against numerous attacks, and also yields watermarked images with high quality. Furthermore, it represents more excellent performance compared with the recent state-of-the-art algorithms for robustness and imperceptibility. The normalized correlation (NC) of the proposed algorithm varies from 0.8252 to 1, the peak signal-to-noise ratio (PSNR) varies from 54.1854 to 54.1892, and structural similarity (SSIM) varies from 0.9285 to 0.9696, respectively. In contrast, the NC of the recent state-of-the-art algorithms varies from 0.5193 to 1, PSNR varies from 38.5471 to 52.64, and SSIM varies from 0.9311 to 0.9663, respectively.

Color in Image Watermarking

2010 ◽  
pp. 36-56 ◽  
Author(s):  
Gaël Chareyron ◽  
Jérôme Da Rugna ◽  
Alain Trémeau
Keyword(s):  
Color Image ◽  
State Of The Art ◽  
Image Watermarking ◽  
The State ◽  
Color Images ◽  
Gray Level ◽  
Color Image Watermarking ◽  
Color Channel ◽  
Multimedia Contents ◽  
Gray Level Image

This chapter summarizes the state-of-the-art color techniques used in the emerging field of image watermarking. It is now well understood that a color approach is required when it comes to deal with security, steganography and watermarking applications of multimedia contents. Indeed, consumers and business expectations are focused on the protection of their contents, which are here color images and videos. In the past few years, several gray-level image watermarking schemes have been proposed but their application to color image is often inadequate since they usually work with the luminance or with individual color channel. Unfortunately, color cannot be considered as a simple RGB decomposition and all of its intrinsic information must be integrated in the watermarking process. Therefore, it is the chapter objective to present, first, the major difficulties associated with the treatment of color images, and second, the state-of-the-art methods used in the field of color image watermarking.

An improved color image watermarking algorithm based on QR decomposition

2015 ◽  
Vol 76 (1) ◽  
pp. 707-729 ◽  
Author(s):  
Qingtang Su ◽  
Gang Wang ◽  
Xiaofeng Zhang ◽  
Gaohuan Lv ◽  
Beijing Chen
Keyword(s):  
Color Image ◽  
Image Watermarking ◽  
Qr Decomposition ◽  
Color Image Watermarking

A blind double color image watermarking algorithm based on QR decomposition

2013 ◽  
Vol 72 (1) ◽  
pp. 987-1009 ◽  
Author(s):  
Qingtang Su ◽  
Yugang Niu ◽  
Hailin Zou ◽  
Yongsheng Zhao ◽  
Tao Yao
Keyword(s):  
Color Image ◽  
Image Watermarking ◽  
Qr Decomposition ◽  
Color Image Watermarking

scholarly journals Digital Color Image Watermarking Using Encoded Frequent Mark

2019 ◽  
Vol 25 (3) ◽  
pp. 81-88
Author(s):  
Abdulkareem Mohammed Salih ◽  
Salih Hassan Mahmood
Keyword(s):  
Digital Media ◽  
Communication Channel ◽  
Color Image ◽  
Signal To Noise Ratio ◽  
Image Watermarking ◽  
Watermark Image ◽  
Main Principle ◽  
Color Image Watermarking ◽  
Algorithm Efficiency ◽  
Media And Communication

With the increased development in digital media and communication, the need for methods to protection and security became very important factor, where the exchange and transmit date over communication channel led to make effort to protect these data from unauthentication access. This paper present a new method to protect color image from unauthentication access using watermarking. The watermarking algorithm hide the encoded mark image in frequency domain using Discrete Cosine Transform. The main principle of the algorithm is encode frequent mark in cover color image. The watermark image bits are spread by repeat the mark and arrange in encoded method that provide algorithm more robustness and security. The proposed algorithm efficiency is measured by using many of measurement factors such as Peak Signal to Noise Ratio PSNR and Normalized Correlation Coefficient NC, the watermark robustness and feasibility are measured by using many types of attacks.  

The Approach of Cutting Attack Resistant Color Image Watermarking

2011 ◽  
Vol 105-107 ◽  
pp. 1908-1911
Author(s):  
Li Jun Ding ◽  
Hao Feng ◽  
Hao Zhao
Keyword(s):  
Complex Space ◽  
Color Image ◽  
Signal To Noise Ratio ◽  
Image Watermarking ◽  
Color Theory ◽  
Color Image Watermarking ◽  
Information Image ◽  
Svd Method ◽  
Real Complex ◽  
Rgb Image

This paper proposed a new method of cutting attack resistant for color image. The RGB image based on three-color theory was transformed and mapped into the real/complex space, which was composed of intensity-number space and color-number space. The watermark information was embedded into the principle component data of intensity-number space, which was extracted by SVD method. And the color image was attacked by 5 types cutting, the extracted watermarking information image had high value of peak signal-to-noise ratio (PSNR), moreover, it also had the similarity value between the original watermark and the extracted watermark. The experiment results demonstrated its’ robustness, effectiveness and rationality.

scholarly journals Blind Watermarking of Color Medical Images Using Hadamard Transform and Fractional-Order Moments

Sensors ◽  
2021 ◽  
Vol 21 (23) ◽  
pp. 7845
Author(s):  
Mostafa M. Abdel-Aziz ◽  
Khalid M. Hosny ◽  
Nabil A. Lashin ◽  
Mostafa M. Fouda
Keyword(s):  
Color Image ◽  
Signal To Noise Ratio ◽  
Image Watermarking ◽  
Hadamard Transform ◽  
Blind Watermarking ◽  
Color Image Watermarking ◽  
Hadamard Transformation ◽  
Blind Extraction ◽  
Parameter Values ◽  
Geometrical Attacks

This paper proposes a new blind, color image watermarking method using fast Walsh–Hadamard transformation (FWHT) and multi-channel fractional Legendre–Fourier moments (MFrLFMs). The input host color image is first split into 4 × 4 non-interfering blocks, and the MFrLFMs are computed for each block, where proper MFrLFMs coefficients are selected and FWHT is applied on the selected coefficients. The scrambled binary watermark has been inserted in the quantized selected MFrLFMs coefficients. The proposed method is a blind extraction, as the original host image is not required to extract the watermark. The proposed method is evaluated over many visual imperceptibility terms such as peak signal-to-noise ratio (PSNR), normalized correlation (NC), and bit error rate. The robustness of the proposed method is tested over several geometrical attacks such as scaling, rotation, cropping, and translation with different parameter values. The most widely recognized image processing attacks are also considered, e.g., compressing and adding noise attacks. A set of combination attacks are also tested to analyze the robustness of the proposed scheme versus several attacks. The proposed model’s experimental and numerical results for invisibility and robustness were superior to the results of similar watermarking methods.

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