Fahmi Kammoun and  Mohamed Salim Bouhlel,  A Perceptual Image Coding method of High Compression Rate.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2007, vol. 9(9). 2904 - 2908
    [viewed 17 October 2021]. Available from: https://publications.waset.org/pdf/14648.