Watermarking Algorithm Based on Feature Points Detected in MPEG-2 Video
Bao Jin-fei · Microcomputer Information · 2009
With the fast development of computer and network techniques,digital watermarking is becoming an efficient method for protecting the intellectual property rights of digital products.This paper proposes a novel blind watermarking algorithm based on feature points detected in MPEG-2 video.In this algorithm,feature points of video are found by using Harris Detectors firstly,and then combined with MPEG-2,embedding the watermarking by adjusting the 8*8 block DCT's DC coefficient.The experimental results indicate that compared with the original video,the watermarked video is changed slightly;the PSNR of watermarked frames loses a little.Our proposed algorithm is easy to perform and can obtain the imperceptibility performance,meanwhile this algorithm has strong robustness towards translation,zoom,frame deleting and MPEG-2 compressing.