Numan Unaldi and  Samil Temel and  S├╝leyman Demirci,  Undecimated Wavelet Transform Based Contrast Enhancement.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2013, vol. 81(9). 1215 - 1218
    [viewed 19 October 2019]. Available from: https://publications.waset.org/pdf/16725.