Irum, I., Sharif, M., Raza, M., & Yasmin, M. (2015). Salt and Pepper Noise Removal Filter for 8-Bit Images Based on Local and Global Occurrences of Grey Levels as Selection Indicator. Nepal Journal of Science and Technology, 15(2), 123–132. https://doi.org/10.3126/njst.v15i2.12128