Robust video watermarking algorithm based on DWT-DCT-SVD
Chen Yuli · Journal of Anhui University · 2015
This paper proposed a blind video watermarking algorithm based on DWT,DCT and SVD.The key frames were selected quickly by color difference of red and green channel in video frames,then performed the blue component of each of key frames on multi-level DWT.Sub-band was scrambled by Arnold transforms,the watermark was embedded into singular value of scrambled sub-band.When the video sequence was under attack,by using the small differences of each color channel pixels of color image and the stability of the singular value decomposition,this paper used the green component of key frames in a watermarked video to replace the blue component of key frames in the original video and extracted watermark blindly.The experimental results demonstrated that the algorithm was robust against noise addition,filtering attack,cropping attack,frame scrambling,frame averaging and MPEG compression.