Vector Graphical Objects Watermarking Scheme in Wavelet Domain
矢量图形中基于小波变换的盲水印算法

A vector graphics authentication technique by embedding digital watermarks is proposed. The vertices coordinate pairs of the vector objects are generated by mapping a 2-D graphics into a sequence. We embed the watermarks into the vector graphics by modifying the DWT magnitude coefficients according to the watermark value, and leaving the angle coefficients unchanged. The experimental results show that the proposed technique successfully survives vector graphical processing operations.