Entropy based video watermarking scheme using wavelet transform and Principle Component Analysis

Abstract

In this paper, a comprehensive approach for digital video watermarking is introduced, where a binary watermark image is embedded into the video frames. Each video frame is decomposed into sub-images using 3 level discrete wavelet transform then the Principle Component Analysis (PCA) transformation is applied for some selected blocks. The selection of the blocks depends on calculating the entropy of each block then the maximum entropy blocks were selected. The watermark is embedded into the maximum coefficient of the PCA block. The proposed scheme is tested using a number of video sequences. Experimental results show high imperceptibility and high robustness against several attacks. The computed PSNR achieves high score which is 47.1078 db.