DocumentCode :
634084
Title :
A new colour image watermarking scheme using Cellular Automata Transform and Schur decomposition
Author :
Panahi, Nazila ; Amirani, Mehdi ; Behnia, Sohrab ; Ayubi, Peyman
Author_Institution :
Dept. of Electr. Eng., Urmia Univ., Urmia, Iran
fYear :
2013
fDate :
14-16 May 2013
Firstpage :
1
Lastpage :
5
Abstract :
In this work a novel robust colour image watermarking scheme in Cellular Automata Transform (CAT) domain in combination with Schur decomposition is presented. Via different CA bases functions, the CAT domain provides numerous transform patterns, hence it improves the flexibility and security in data hiding. Furthermore, through Schur decomposition, highly transparency and robustness and also faster procedure in comparison with SVD-based methods is obtained. Moreover to enhance transparency and robustness, the watermark encoded by Error Correcting Code is embedded in some blocks of host image, selected by Logistic map. The experimental results confirm the efficiency of the proposed scheme.
Keywords :
cellular automata; data encapsulation; error correction codes; image colour analysis; image watermarking; transforms; CA bases function; CAT domain; Schur decomposition; cellular automata transform; data hiding; error correcting code; flexibility improvement; logistic map; robust colour image watermarking scheme; robustness enhancement; security improvement; transparency enhancement; Automata; Image color analysis; Logistics; PSNR; Robustness; Transforms; Watermarking; Cellular Automata Transform; Error Correcting Code; Image Watermarking; Logistic Map; Schur Decomposition;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electrical Engineering (ICEE), 2013 21st Iranian Conference on
Conference_Location :
Mashhad
Type :
conf
DOI :
10.1109/IranianCEE.2013.6599623
Filename :
6599623
Link To Document :
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