Adaptive smoothing of images with local weighted regression
Mark S Levenson, David S. Bright, Jayaram Sethuraman · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1996
We present a weighting scheme for local weighted regression designed to achieve tow goals: (1) to reduce noise within image regions of smoothly varying intensities; and (2) to maintain sharp boundaries between image regions. Such a procedure can function as a preprocessing step in ann image segmentation problem or simply as an image enhancement technique.