Open AccessDual Image Signature Method using DWT and SVD in YCbCr Colour Space
Author(s) -
Addanki Purna Ramesh*,
Manukonda Dheeraj
Publication year - 2019
Publication title -
international journal of innovative technology and exploring engineering
Language(s) - English
Resource type - Journals
ISSN - 2278-3075
DOI - 10.35940/ijitee.a4282.119119
Subject(s) - singular value decomposition , robustness (evolution) , computer science , artificial intelligence , digital watermarking , digital signature , computer vision , cover (algebra) , singular value , discrete wavelet transform , signature (topology) , image (mathematics) , pattern recognition (psychology) , mathematics , wavelet , wavelet transform , computer security , hash function , engineering , eigenvalues and eigenvectors , mechanical engineering , biochemistry , chemistry , physics , geometry , quantum mechanics , gene
The digital data can be easily modified and copied, so it is not secure, so owner authentication is required to prevent this unauthorised access of digital data. Image signature (water mark) is required to embed with digital data. The Discrete Wavelet Transform (DWT) supports image signature algorithms possess dual resolution attaining imperceptibility. The Singular Value Decomposition (SVD) supports to achieving the robustness in order to add the signature information to the singular values of the diagonal matrix.. In this work implementing dual image signature method using DWT and SVD in YCbCr colour space. The cover image is embedded with dual images to achieve better security from unauthorized persons. The proposed method improves the robustness and imperceptibility of the cover image.