DT CWT and Schur decomposition based robust watermarking algorithm to geometric attacks

2021 ◽  
Author(s):  
Pei Liu ◽  
Hao Wu ◽  
Lan Luo ◽  
Dao-Shun Wang
Keyword(s):  
Schur Decomposition ◽  
Robust Watermarking ◽  
Geometric Attacks

A SVD and Modified Firefly Optimization Based Robust Digital Image Watermarking Technique

2017 ◽  
Vol 7 (7) ◽  
pp. 268
Author(s):  
Chauhan Usha ◽  
Singh Rajeev Kumar
Keyword(s):  
Digital Media ◽  
Firefly Algorithm ◽  
Image Watermarking ◽  
Singular Values ◽  
Robust Watermarking ◽  
Scaling Factors ◽  
Geometric Attacks ◽  
Host Image ◽  
Firefly Optimization ◽  
Value Decomposition

Digital Watermarking is a technology, to facilitate the authentication, copyright protection and Security of digital media. The objective of developing a robust watermarking technique is to incorporate the maximum possible robustness without compromising with the transparency. Singular Value Decomposition (SVD) using Firefly Algorithm provides this objective of an optimal robust watermarking technique. Multiple scaling factors are used to embed the watermark image into the host by multiplying these scaling factors with the Singular Values (SV) of the host image. Firefly Algorithm is used to optimize the modified host image to achieve the highest possible robustness and transparency. This approach can significantly increase the quality of watermarked image and provide more robustness to the embedded watermark against various attacks such as noise, geometric attacks, filtering attacks etc.

Robust watermarking for medical images resistant to geometric attacks

2012 ◽  
Author(s):  
Muhammad Tahir Naseem ◽  
Ijaz Mansoor Qureshi ◽  
Atta-ur-Rahman ◽  
Muhammad Zeeshan Muzaffar
Keyword(s):  
Medical Images ◽  
Robust Watermarking ◽  
Geometric Attacks

scholarly journals A Large Capacity Histogram-Based Watermarking Algorithm for Three Consecutive Bins

2018 ◽  
Vol 8 (12) ◽  
pp. 2617 ◽  
Author(s):  
Zhen Yue ◽  
Zichen Li ◽  
Hua Ren ◽  
Yixian Yang
Keyword(s):  
Information Hiding ◽  
Research Topic ◽  
Robust Watermarking ◽  
Large Capacity ◽  
Geometric Attacks ◽  
Watermark Embedding ◽  
Strong Robustness ◽  
Information Number ◽  
First Time ◽  
Cropping Attack

The histogram watermark, which performs watermark embedding by slightly modifying the histogram of the original image, has been a hot research topic in information hiding technology due to the superiority of its pixel modification during the watermark embedding process, which is independent of the pixel position. This property makes the histogram-based watermark strong resistant to geometric attacks, such as cropping attack, crossed attack, rotation attack, etc. In this paper, we propose a large capacity histogram-based robust watermarking algorithm based on three consecutive bins for the first time. In our scheme, we divide the shape of three consecutive bins into eight cases. According to these cases, we embed Information Number 0, 1, 2, 3, 4, 5, 6, or 7, respectively. The embedded information capacity reaches one bit per bin (bpb), and the amount of embedded information is equal to 200% of the previous existing algorithms. Experimental results show that the new algorithm not only has a large capacity of embedding information, but also has strong robustness to geometric attacks, as well as common image processing operations.

Robust watermarking against geometric attacks using partial calculation of radial moments and interval phase modulation

2014 ◽  
Vol 269 ◽  
pp. 94-105 ◽  
Author(s):  
Sasan Golabi ◽  
Mohammad Sadegh Helfroush ◽  
Habibollah Danyali ◽  
Mehri Owjimehr
Keyword(s):  
Phase Modulation ◽  
Robust Watermarking ◽  
Geometric Attacks ◽  
Radial Moments

DWT and Lifting Wavelet Transform Based Robust Watermarking for Color Image

2015 ◽  
Vol 10 (11) ◽  
pp. 1127
Author(s):  
Nidaa Hasan Abbas ◽  
Sharifah Mumtazah Syed Ahmad ◽  
Wan Azizun Wan Adnan ◽  
Abed Rahman Bin Ramli ◽  
Sajida Parveen
Keyword(s):  
Wavelet Transform ◽  
Color Image ◽  
Robust Watermarking ◽  
Lifting Wavelet Transform ◽  
Lifting Wavelet

A Hybrid Robust Watermarking and Encryption for Medical Images using GA Optimized DWT and SVD

2015 ◽  
Vol 2 (1) ◽  
pp. 19-27
Author(s):  
Venugopal Reddy ◽  
◽  
P. Siddaiah ◽  
Keyword(s):  
Medical Images ◽  
Robust Watermarking
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