Multiple Image Signature Scheme Based on DWT-SVD in YCbCr Color Space
K. Kavya, G Sateesh Kumar, D.V.L.N Sastry · CiiT international journal of artificial intelligent systems and machine learning · 2017
The digital data on the internet is not secure, because the digital data is easily modified and copied. So that one system is need to prevent this unauthorized access of digital data for owner authentication. There are many systems available in the literature and one popular system is image signature. The DWT-based image signature algorithms have multi-resolution description characteristics are achieving imperceptibility. The SVD based image signature algorithms add the signature information to the singular values of the diagonal matrix achieving robustness requirements. An approach to a robust multiple-image signature method based on Discrete Wavelet Transform and Singular Value Decomposition in YCbCr color space is proposed to get good imperceptibility and robustness. The cover image is a signature with multiple images to meet better security from unauthorized persons. The proposed algorithm provides good robustness against various attacks.