Bilateral filtering method for digital image data, involves modifying pixel value and distance weighting functions using edge weighting function that is determined based on edge strength of image pixel

摘要

The method involves determining a smoothing pixel value for a pixel value of an image pixel of an image data, where the smoothing pixel value is determined from the pixel value and pixel value of another image pixel of surrounding of the former image pixel. The latter pixel value is spaced apart from the former image pixel for averaging a distance weighting function. A pixel value weighting function and the distance weighting function are modified using an edge weighting function that is determined based on an edge strength of the former image pixel. Independent claims are also included for the following: (1) a computer program product comprising instructions to perform a method for bilateral filtering of digital image data (2) an image computer comprising instructions to perform a method for bilateral filtering of digital image data (3) a memory medium comprising instructions to perform a method for bilateral filtering of digital image data.