Open Access
Concept and Application of Zero-Watermark
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TLDR
The result of experiment shows that this zero watermark constructed by this method has good performance and is a new digital watermarking technology without modifying the data of original image.Abstract:
In the existing method of digital watermark,for embedding watermark information,authors modify more or less original image data through various methods to limit its robustness and security.Zero watermark is a new digital watermarking technology without modifying the data of original image.In this paper,we construct zero watermark using high order cumulants.The result of experiment shows that this zero watermark constructed by this method has good performance.read more
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Journal ArticleDOI
Ternary radial harmonic Fourier moments based robust stereo image zero-watermarking algorithm
TL;DR: Experimental results indicate that the proposed stereo image zero- watermarking algorithm is strongly robust to various asymmetric and symmetric attacks and has superiority compared with other zero-watermarking algorithms.
Journal ArticleDOI
Color medical image lossless watermarking using chaotic system and accurate quaternion polar harmonic transforms
Zhiqiu Xia,Xingyuan Wang,Xingyuan Wang,Wenjie Zhou,Wenjie Zhou,Rui Li,Chunpeng Wang,Chuan Zhang +7 more
TL;DR: Experimental results show that the proposed scheme for color medical image copyright protection based on a chaotic system and quaternion polar harmonic transforms (QPHTs) is robust to geometric attacks and common attacks and that it has better performance than similar lossless watermarking schemes.
Journal ArticleDOI
Robust watermarking using orthogonal Fourier-Mellin moments and chaotic map for double images
TL;DR: A robust watermarking scheme based on orthogonal Fourier-Mellin moments and chaotic map is introduced, which achieves copyright authentication for double images simultaneously and is more robust than previous schemes.
Journal ArticleDOI
Geometrically resilient color image zero-watermarking algorithm based on quaternion Exponent moments
TL;DR: Properties of quaternion Exponent moments (QEMs) are discussed in detail in detail and a robust color image zero-watermarking algorithm is proposed which is robust to geometric attacks.
Journal ArticleDOI
A QR Code Based Zero-Watermarking Scheme for Authentication of Medical Images in Teleradiology Cloud
TL;DR: A zero-watermarking scheme implemented in the composite Contourlet Transform (CT)—Singular Value Decomposition (SVD) domain for unambiguous authentication of medical images and access to patient records is presented.