Watermarking Scheme Based on Multiple Chaotic Maps
Publish place: The International Journal of Communications and Information Technology، Vol: 1، Issue: 2
Publish Year: 1391
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_CIT-1-2_001
تاریخ نمایه سازی: 20 تیر 1401
Abstract:
a watermarking scheme for Grayscale image isproposed based on a family of the chaotic maps and discretecosine transform. Jacobian Elliptic mapis employed to encrypt ofwatermarked logo. Piecewise nonlinear chaotic map is also usedto determine the location of DCT coefficients for the watermarkembedding. The purpose of this algorithm is to improve theshortcoming of watermarking such as small key space and lowsecurity. Therefore the size of key space for initial conditions andcontrol parameters is computed about and this keyspace is large enough to resist the attacks. Toevaluate therobustness and effectiveness of proposed method, several attacksare applied to the
Keywords:
Blind Digital Image Watermarking , Chaos , Discrete Cosine Transform , Multiple Chaotic Maps , Jacobian Eliptic Map , Piecewise nonlinear chaotic Map
Authors
J. Ayubi
University of Sistan and Baluchestan
F. Mohanna
University of Sistan and Baluchestan
S. Mohanna
University of Sistan and Baluchestan
M. Rezaei
University of Sistan and Baluchestan