smoothing

"Smoothing" is to perform an averaging of data and to obtain a smoothly connected data set (smooth curve) by eliminating singular points and noises from a series of data with the help of the data at the neighboring points. For a simple example, a data at a certain point is replaced by the average between the data at the point and the data of the nearest neighbor points. Smoothing is frequently used for image processing and processing of spectroscopic data.