scholarly journals Robust image watermarking against geometric attacks

2013 ◽  
Author(s):  
◽  
Qi Dong
Keyword(s):  
Image Watermarking ◽  
Geometric Attacks ◽  
Robust Image

scholarly journals Robust Image Watermarking Algorithm Based on ASIFT against Geometric Attacks

2018 ◽  
Vol 8 (3) ◽  
pp. 410 ◽  
Author(s):  
Chengyou Wang ◽  
Yunpeng Zhang ◽  
Xiao Zhou
Keyword(s):  
Image Watermarking ◽  
Geometric Attacks ◽  
Robust Image

Watermarking Scheme Resilient to Geometrical Attacks Base Normalized Feature Area

2014 ◽  
Vol 1061-1062 ◽  
pp. 1118-1123 ◽  
Author(s):  
Ou Jun Lou ◽  
Shuang Tong Tang ◽  
Shao Hua Li
Keyword(s):  
Image Watermarking ◽  
Feature Points ◽  
Geometric Attacks ◽  
Host Image ◽  
Feature Based ◽  
Robust Image ◽  
Good Transparency ◽  
Feature Scale ◽  
Watermarking Scheme ◽  
Geometrical Attacks

The crucial of design a robust image watermarking scheme is cope with geometrical attacks in transform domain.In this paper, a novel feature-based image watermarking scheme resilient to the geometrical attacks is proposed. Firstly, the harris-affine detector is utilized to extract invariant feature points from the host image. Then, by the feature scale of the local structure, the feature regions are adaptively computed and normalized. Finally, several copies of the digital watermark are embedded into the nonoverlapped local feature regions by quantizing the magnitude vectors of the DFT middle frequency. During detection, the resynchronization is achieved through feature points. And the embedded sequence can be extracted by “majority principles” without resorting to the original host image. Experimental results show that the proposed algorithm has good transparency and is very robust to common image processing and 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.

Fast and robust image watermarking method in the spatial domain

2020 ◽  
Author(s):  
Zihan Yuan ◽  
Qingtang Su ◽  
Decheng Liu ◽  
Xueting Zhang ◽  
Tao Yao
Keyword(s):  
Image Watermarking ◽  
Spatial Domain ◽  
Robust Image
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