Abstract
Due to advanced tools available in computer technology, it is possible for unknown users to access the digital multimedia data. In order to protect important data from unauthorized people, this paper proposed a novel watermarking technique for color images. The proposed technique uses a unique combination of HL sub-band of Discrete Wavelet Transform (DWT) and Singular Value Decomposition (SVD). The singular matrices obtained by applying SVD to the DWT applied watermark image, are added to the singular matrices obtained by applying SVD to the DWT applied host image, in proper proportion. The quality of the watermarked image is estimated in terms of the Peak Signal to Noise Ratio (PSNR) and correlation coefficients. Experimental results applied on benchmark test images show promising performances for the algorithm proposed.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.