N. Shanmugapriya and  R. Nallusamy,  Gaussian Density and HOG with Content Based Image Retrieval System – A New Approach.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2014, vol. 95(11). 2065 - 2069
    [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/10000411.