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2010 3rd International Conference on Computer Science and Information Technology
A new blind geometric robust watermarking scheme is presented based on singular value decomposition (SVD) and discrete wavelet transform (DWT). In the scheme, the host image is decomposed with n-level DWT and the low frequency sub-band is divided into nonoverlapping blocks. SVD is applied to every block. The watermark is embedded into the low frequency DWT coefficients by modifying the largest singular value of each block. In the detection process, the geometric distortion parameters of thedoi:10.1109/iccsit.2010.5564713 fatcat:g7jl4fsz5bbs5bdf5d2qk4cx6m