? - Neighbourhood Median Filters to Remove Speckle Noise from CT Images
Gnanambal Ilango, B. Shanthi Gowri · International Journal of Applied Information Systems · 2012
Removal of noise from the medical images is very challenging in image processing. In recent years, technological development has improved significantly in analyzing medical imaging. This paper proposes different filtering techniques for the removal of speckle noise from CT medical images by topological approach. The filters are constructed based on metric topological neighbourhood. The quality of the enhanced images is measured by the statistical quality measures: Root Mean Square Error (RMSE) and Peak Signal to Noise Ratio (PSNR).