Wavelet Packet and Adaptive Spatial Transformation of Watermark for Digital Image Authentication. - Min-Jen Tsai; Kuang-Yao Yu; Yi-Zhang Chen (ICIP, 2000)

Joint wavelet and spatial transformation for digital watermarking. - Min-Jen Tsai; Kuang-Yao Yu; Yi-Zhang Chen (IEEE Trans. Consumer Electron., 2000)