Hema Gaikwad, Jatinderkumar R. Saini. “Using Exhaustive Threshold Approach for Identification of Foreground and Background Images from Non-Printed Part of Medical Prescription Document”. International Journal of Advanced Science and Technology, Vol. 29, no. 05, Apr. 2020, pp. 1199 -05, http://sersc.org/journals/index.php/IJAST/article/view/9780.