WASET
    Amr Almaddah and  Sadi Vural and  Yasushi Mae and  Kenichi Ohara and  Tatsuo Arai,  2D Spherical Spaces for Face Relighting under Harsh Illumination.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2012, vol. 69(9). 1138 - 1143
    [viewed 11 May 2024]. Available from: https://publications.waset.org/pdf/6318.