Quantization Watermarking Blind Extraction Algorithm Using Singular Value Decomposition
Zhirong Gao · Modern Computer · 2007
This paper presents an efficient binary watermarking algorithm for digital image by using singular value decomposition. Because the singular values of an image matrix are steady and the maximal one is far bigger than any one of the others, the binary watermark could be embedded and blindly extracted by singular values decomposition of tiled image, where the parity characteristic is used to embed watermarking. The experimental results show that the proposed watermarking scheme achieves better transparency and robustness, and the original image is not used for watermark extraction show that blind detection of watermark is achieved.