Nearest neighbor is a resampling method used in remote sensing. The approach assigns a value to each "corrected" pixel from the nearest "uncorrected" pixel. The advantages of nearest neighbor include simplicity and the ability to preserve original values in the unaltered scene. The disadvantages include noticeable position errors, especially along linear features where the realignment of pixels is obvious.
Nearest Neighbor: This resampling method assigns the digital number (DN) of the closest input pixel (in terms of coordinate location) to the corresponding output pixel.
