Paper Info
Title
Image Watermarking Based On Discrete Fractional Fourier Transforms With Multiple Parameters
Abstract
A watermarking algorithm based on the conventional single-parameter discrete fractional Fourier transform (DFRFT) and random phase encoding was proposed by Guo et al. in the literature. In this paper, we propose to replace the single-parameter DFRFT in that watermarking method by using other extended DFRFTs with multiple parameters, i.e., the multiple-parameter DFRFT (MPDFRFT), the random DFRFT (RDFRFT) and the reality-preserving DFRFT (Real DFRFT). Since all of the additional parameters of the employed extended DFRFTs can be used as secret keys for watermark extraction, security of the watermarking algorithm can be enhanced by our proposed methods. Besides, computation requirement can be reduced if the watermarking method employs the Real DFRFT, which is a real transform. Computer experiments are also included to show effectiveness and robustness of our proposed watermarking methods.
Year
Venue
Keywords
2017
2017 13TH INTERNATIONAL CONFERENCE ON NATURAL COMPUTATION, FUZZY SYSTEMS AND KNOWLEDGE DISCOVERY (ICNC-FSKD)
watermarking, random phase encoding, fractional Fourier transform, security, robustness
Field
DocType
Citations 
Computer experiment,Mathematical optimization,Digital watermarking,Computer science,Algorithm,Robustness (computer science),Fourier transform,Watermark,Fractional Fourier transform,Encoding (memory),Computation
Conference
0
PageRank 
References 
Authors
0.34
0
3
Name
Order
Citations
PageRank
Wei-Ting Chiu100.34
Yu Tai295.92
Wen-Liang Hsue310010.67