A Scene Based Video Watermarking Using Slant Transform

ABSTRACT

Due to the explosion of Internet and multimedia copyright protection has gained utmost importance. Digital watermarking is found to be a solution for digital copyright protection. In this paper, a robust video watermarking based on slant transform is presented. The video is partitioned into frames and owner's identity watermark is embedded in slant transform domain by modifying the transform coefficients. The transparency of the watermarked image is enhanced by embedding the watermark in selected positions based on the human visual system (HVS) weightage matrix. The robustness of the proposed algorithm is examined by subjecting the algorithm to various compressional and signal processing attacks. Peak signal to noise ratio and normalized cross correlation are computed to prove that the proposed algorithm is more imperceptible and robust.

Keywords:

• Cross correlation
• Human visual system (HVS)
• Peak signal to noise ratio
• Sequency
• Slant transform.

Additional information

Notes on contributors

K. Meenakshi

Meenakshi Kollati received the B. Tech degree from Nagarjuna University, AP, India, in electronics and communication engineering and master's degree in digital systems and computer electronics from JNTU, Hyderabad, AP, India, in 2006. She is currently pursuing her PhD in JNTU, Kakinada. Her areas of interest are digital image processing and embedded systems.

E-mail: [email protected]

Ch. Srinivasa Rao

Srinivasa Rao Ch is currently working as professor of ECE and Head of the Department at JNTUK University College of Engineering, Vizianagaram, AP, India. He obtained his PhD in digital image processing area from University College of Engineering, JNTUK, Kakinada, AP, India. He received M. Tech degree from the same institute. He published 20 research papers in reputed international journals and conferences. Dr Rao is a fellow of IETE.

E-mail: [email protected]

K. Satya Prasad

Satya Prasad Kodati received his PhD degree from IIT Madras, India. He is presently working as professor in ECE Department, JNTU College of Engineering Kakinada. He has more than 30 years of teaching and research experience. He published 40 research papers in international and 20 research papers in national journals. His areas of interest are digital signal and image processing, communications, ad hoc networks, etc. Dr K. S. Prasad is a fellow of IETE.

E-mail: [email protected]