Tong Liu and  Xuan Xu and  Xiaodi Wang,  M-band Wavelet and Cosine Transform Based Watermark Algorithm Using Randomization and Principal Component Analysis.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2012, vol. 71(11). 1517 - 1520
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/15433.