An Adaptive SVD-based Wavelet Domain Watermarking Scheme for Color Image Authentication

作者：Liu Dongyan^*; Liu Wenbo

来源：International Pre-Olympic Congress on Computer Science, 2008-08-04 to 2008-08-07.

• watermark
• authentication
• SVD
• DWT
• chaos

In this paper, a new semi-fragile watermarking scheme for color image authentication is proposed, in which the watermark is embedded in the SVs(singular values)of the blocks within wavelet subbands by an adaptive quantized method. DWT is performed on the extracted and linearly modified luminance information matrix based on the features of YIQ. The two-dimensional transformed network generated by the low-dimensional Tent chaotic map is used to encrypt the embedded watermark. Only one initial value is required, which improves the simpleness of the scheme. The results of the experiment show that the proposed scheme is robust to JPEG compression but extremely sensitive to malicious manipulations.

• 出版日期2008
• 单位南京航空航天大学