scholarly journals Robust and Secure Watermarking for Propagation of Digital Multimedia by Paillier Homomorphic Cryptosystem With Arnold Transformation

2021 ◽  
Vol 12 (4) ◽  
pp. 17-31
Author(s):  
Namita Agarwal ◽  
Pradeep Kumar Singh
Keyword(s):  
Digital Media ◽  
Recovery Phase ◽  
Experimental Result ◽  
Watermark Image ◽  
Content Authentication ◽  
Digital Multimedia ◽  
Homomorphic Cryptosystem ◽  
Dct Domain ◽  
Arnold Scrambling ◽  
Arnold Transformation

Sharing of digital media over internet is becoming easier due to content authentication and security provided by digital watermarking. It also locates application in other fields like copyright protection, tele-medicine, military, tamper detection, and many more. This paper represents the robust watermarking approach using Paillier homomorphic cryptosystem with Arnold transformation. In this, the watermarking system is primarily prepared at an encrypted DWT-DCT domain. Cryptosystem is exploited at this time to encrypt the original media. For more security of multimedia content, the watermark image is scrambled through Arnold scrambling technique. The embedding process is done here to produce the encrypted watermark image followed by the encryption process. At recovery phase, decryption of encrypted watermark image to get the original and watermark image is done. The experimental result has shown that watermarking method is more robust and offers the security of digital media.

scholarly journals A New Double Color Image Watermarking Algorithm Based on the SVD and Arnold Scrambling

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Ying Li ◽  
Musheng Wei ◽  
Fengxia Zhang ◽  
Jianli Zhao
Keyword(s):  
Color Image ◽  
Image Watermarking ◽  
Singular Values ◽  
Watermark Image ◽  
Color Image Watermarking ◽  
Host Image ◽  
Arnold Scrambling ◽  
The One ◽  
Watermarking Scheme ◽  
Arnold Transformation

We propose a new image watermarking scheme based on the real SVD and Arnold scrambling to embed a color watermarking image into a color host image. Before embedding watermark, the color watermark image W with size of M×M is scrambled by Arnold transformation to obtain a meaningless image W~. Then, the color host image A with size of N×N is divided into nonoverlapping N/M×N/M pixel blocks. In each (i,j) pixel block Ai,j, we form a real matrix Ci,j with the red, green, and blue components of Ai,j and perform the SVD of Ci,j. We then replace the three smallest singular values of Ci,j by the red, green, and blue values of W~ij with scaling factor, to form a new watermarked host image A~ij. With the reserve procedure, we can extract the watermark from the watermarked host image. In the process of the algorithm, we only need to perform real number algebra operations, which have very low computational complexity and are more effective than the one using the quaternion SVD of color image.

A Unified Approach towards Multimedia Watermarking

2013 ◽  
pp. 376-399
Author(s):  
Ali Al-Haj ◽  
Ahmad Mohammad ◽  
Samir Abou El-Seoud ◽  
Tuqa Manasrah ◽  
Lama Rajab ◽  
...  
Keyword(s):  
Digital Media ◽  
Digital Watermarking ◽  
Singular Values ◽  
Discrete Wavelet ◽  
Digital Multimedia ◽  
Copyright Violation ◽  
The Media ◽  
Value Decomposition ◽  
Multimedia Watermarking ◽  
Dual Transform

The tremendous advancement of digital technology has increased the ease with which digital multimedia signals (image, video, audio) are stored, transmitted, and reproduced. Consequently, the content providers and owners are faced with problems of protection against copyright violation and other forms of abuse to their digital property. Digital watermarking has been proposed in the last decade as a solution to prevent illegal and malicious copying and distribution of digital media by embedding an unnoticeable information into the media content. This chapter describes three imperceptible and robust watermarking algorithms for different types of multimedia objects (image, video, audio). The three algorithms are based on cascading two powerful mathematical transforms; the Discrete Wavelet Transform (DWT), and the Singular Value Decomposition (SVD). The two transforms are different, and thus provide complementary levels of robustness against the same attack. In the proposed dual-transform algorithms, the watermark bits are not embedded directly on the wavelet coefficients, but rather on the elements of singular values of the DWT sub-bands of the multimedia object. Effectiveness of the proposed algorithms is demonstrated through extensive experimentation.

Embedding and Extraction of Digital Watermark Based on DCT

2013 ◽  
Vol 321-324 ◽  
pp. 1150-1153
Author(s):  
Hong Yu Wu ◽  
Yao Hui Li
Keyword(s):  
White Noise ◽  
Digital Watermark ◽  
Watermark Image ◽  
Gaussian Filtering ◽  
Dct Domain ◽  
Watermark Embedding ◽  
Noise Image

We propose a DCT domain watermarking algorithm, this algorithm transforms the watermark image before the watermark embedding and embeds watermark images by key vector, which improves the robustness and security greatly. The experiments indicate that the program has a better robustness on Gaussian filtering, white noise, image shearing, so digital watermark technology is useful.

scholarly journals Digital media zero watermark copyright protection algorithm based on embedded intelligent edge computing detection

2021 ◽  
Vol 18 (5) ◽  
pp. 6771-6789
Author(s):  
Hongyan Xu ◽  
Keyword(s):  
Edge Detection ◽  
Digital Media ◽  
Copyright Protection ◽  
Detection Rate ◽  
Signal To Noise Ratio ◽  
Edge Computing ◽  
Absolute Difference ◽  
Watermark Image ◽  
Signal To Noise ◽  
Noise Ratio

<abstract> <p>With the rapid development of computer technology and network communication technology, copyright protection caused by widely spread digital media has become the focus of attention in various fields. For digital media watermarking technology research emerge in endlessly, but the results are not ideal. In order to better realize the copyright identification and protection, based on the embedded intelligent edge computing detection technology, this paper studies the zero watermark copyright protection algorithm of digital media. Firstly, this paper designs an embedded intelligent edge detection module based on Sobel operator, including image line buffer module, convolution calculation module and threshold processing module. Then, based on the embedded intelligent edge detection module, the Arnold transform of image scrambling technology is used to preprocess the watermark, and finally a zero watermark copyright protection algorithm is constructed. At the same time, the robustness of the proposed algorithm is tested. The image is subjected to different proportion of clipping and scaling attacks, different types of noise, sharpening and blur attacks, and the detection rate and signal-to-noise ratio of each algorithm are calculated respectively. The performance of the watermark image processed by this algorithm is evaluated subjectively and objectively. Experimental data show that the detection rate of our algorithm is the highest, which is 0.89. In scaling attack, the performance of our algorithm is slightly lower than that of Fourier transform domain algorithm, but it is better than the other two algorithms. The Signal to Noise Ratio of the algorithm is 36.854% in P6 multiplicative noise attack, 39.638% in P8 sharpening edge attack and 41.285% in fuzzy attack. This shows that the algorithm is robust to conventional attacks. The subjective evaluation of 33% and 39% of the images is 5 and 4. The mean values of signal to noise ratio, peak signal to noise ratio, mean square error and mean absolute difference are 20.56, 25.13, 37.03 and 27.64, respectively. This shows that the watermark image processed by this algorithm has high quality. Therefore, the digital media zero watermark copyright protection algorithm based on embedded intelligent edge computing detection is more robust, and its watermark invisibility is also very superior, which is worth promoting.</p> </abstract>

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.  

scholarly journals The Rise of Digital Multimedia Systems

2013 ◽  
Vol 12 (1) ◽  
pp. 141-151
Author(s):  
Ross Gibson
Keyword(s):  
Digital Media ◽  
Social Conditions ◽  
Multimedia Systems ◽  
Digital Multimedia

With this essay, I want to understand why interactive and relational media forms have become so ubiquitous so quickly. Comparing the nexus of cinema and nationalism with the contemporary dyad of digital media and transnationalism (or globalisation), we can ask whether digital multimedia systems have arisen to reflect and impel our contemporary psychic and social conditions. Because multimedia rarely gets ‘locked-off’, its component elements can always be pulled apart, sent back to their databases and then instantaneously rearranged into newly iterated federations. In this respect it is like our unstable contemporary lives, so buffeted with ever-altering values, opportunities, anxieties and obligations all upwelling because of globalisation, migration and multiculturalism.

A Digital Watermarking Method by Double Encryption Based on Arnold and Chaos in DCT Domain

2011 ◽  
Vol 65 ◽  
pp. 104-107 ◽  
Author(s):  
Jian Hua Song ◽  
Yong Zhu
Keyword(s):  
Intellectual Property ◽  
Digital Watermarking ◽  
Efficient Method ◽  
Low Frequency ◽  
Jpeg Compression ◽  
Intellectual Property Protection ◽  
Experimental Results ◽  
Noise Filtering ◽  
Dct Domain ◽  
Arnold Scrambling

Digital watermarking is an efficient method for the intellectual property protection and identification. A digital watermarking method by double encryption based on Arnold and chaos in DCT domain was proposed in this paper. First, the digital watermarking was transformed by Arnold scrambling, and then the watermarking was encrypted by chaos system again, so it made the watermarking get double encryption. The encrypted watermarking was embedded into the parts of low-frequency coefficients. The experimental results show that the algorithm is effective and robust for several attacks such as common noise, filtering, cropping and JPEG compression, as well as its good security.

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