TITLE:
A Blind DWT-SCHUR Based Digital Video Watermarking Technique
AUTHORS:
Lama Rajab, Tahani Al-Khatib, Ali Al-Haj
KEYWORDS:
Video Watermarking, Schur Decomposition, Discrete Wavelet Transform (DWT)
JOURNAL NAME:
Journal of Software Engineering and Applications,
Vol.8 No.4,
April
24,
2015
ABSTRACT: Digital watermarking is one of the most
powerful tools used in ownership and copyrights protection in digital media.
This paper presents a blind digital video watermarking technique based on a
combination scheme between the Discrete Wavelet transform in (DWT) and the real
Schur Decomposition. The scheme starts with applying twolevel DWT to the
video scene followed by Schur decomposition in which the binary watermark bits
are embedded in the resultant block upper triangular matrix. The proposed
technique shows high efficiency due to the use of Schur decomposition which
requires fewer computations compared to other transforms. The imperceptibility
of the scheme is also very high due to the use of DWT transform; therefore, no
visual distortion is noticed in the watermarked video after embedding. Furthermore,
the technique proves to be robust against set of standard attacks like:
Gaussian, salt and pepper and rotation and some video attacks such as: frame
dropping, cropping and averaging. Both capacity and blindness features are also
considered and achieved in this technique.