Abstract
A DCT_SVD field watermarking algorithm for digital image based on Moore-model cellular automata scrambling is proposed in this paper. Firstly, Moore-model cellular automata with chaotic characteristics is used to disorder the original mark. Then the original carrier image is carry on 8×8 block discrete cosine transform (DCT), where low frequency coefficients of the carrier image is selected in a Zig-Zag order to create a matrix with the same size as the watermarking images and the singular value decomposition (SVD) of matrix is carry out. Finally, complete encrypted watermark is embedded in decomposition domain of SVD, which not only enhances the capacity of embedded information but also improves the safety of watermark. Experimental results show that the new watermarking scheme has a good invisibility of embedded watermark image and is robust against common attacks such as JPEG compression, filtering, adding noise, and geometric distortion.
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.