Kamra, P., and S. Kaur. “Improved Image Compression Techniques Using Median Filter DWT-SPIHT Based on Huffman Coding”. International Journal of Emerging Trends in Science and Technology, Vol. 2, no. 09, Sept. 2015, pp. 3148-51, http://igmpublication.org/ijetst.in/index.php/ijetst/article/view/902.