WASET
    Sangbum Park and  Namki Lee and  Youngjoon Han and  Hernsoo Hahn ,  The Water Level Detection Algorithm Using the Accumulated Histogram with Band Pass Filter.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2009, vol. 32(8). 2151 - 2155
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/9492.