Kashyap, Nikita; Sinha, G. R.
March 2012
Advances in Computational Research;2012, Vol. 4 Issue 1, p42
Academic Journal
A novel multi resolution watermarking method has been introduced for digital images. The proposed method is based on 2-level discrete wavelet transform (DWT) and alpha blending technique. In this technique the insertion and extraction of the watermark in the gray-scale cover image is found to be simpler than other transform techniques. We have successfully implemented the digital watermarking technique on digital images based on 2-level discrete wavelet transform and compared the performance of proposed method with 1-level DWT by using statistical parameters peak signal to noise ratio (PSNR) and mean square error (MSE).


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