Sherin M. Youssef and  Ahmed Abouelfarag and  Noha M. Ghatwary,  Adaptive Digital Watermarking Integrating Fuzzy Inference HVS Perceptual Model.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    December 2012, vol. 72(12). 1584 - 1592
    [viewed 28 February 2020]. Available from: https://publications.waset.org/pdf/13315.