Jonghyun Park and  Toan Nguyen Dinh and  Gueesang Lee,  Binarization of Text Region based on Fuzzy Clustering and Histogram Distribution in Signboards.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    July 2008, vol. 19(7). 2319 - 2324
    [viewed 09 May 2024]. Available from: https://publications.waset.org/pdf/11950.