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Secure and Robust Watermarking Using Wavelet Transform and Student t-distribution
Procedia Computer Science
In this paper, we propose secure and robust data hiding algorithm based on hiding in random coefficients of Discrete Wavelet Transform and student t-distribution. The watermark image is scrambled to increases its security and robustness. Performance evaluation for robustness and imperceptibility of proposed algorithm has been made using bit error rate (BER) and peak signal to noise ratio (PSNR) value for different watermark and cover images such as Lena, Gibbon and Fruit images. Thedoi:10.1016/j.procs.2015.10.071 fatcat:qotsdvubezafjakfkadkgwgt4y