WASET
    P.S. Hiremath and  Prema T. Akkasaligar and  Sharan Badiger,  Speckle Reducing Contourlet Transform for Medical Ultrasound Images.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2011, vol. 56(8). 932 - 939
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/6361.