Patent ID: 9031348
Filing Date: 2015-05-12
Classification: G06T

Abstract:
1. An edge-preserving filtering method used in a digital image processing apparatus, comprising: acquiring, by at least a first hardware processor, an upper edge pixel P(x,y−n), a lower edge pixel P(x,y+m), (m+n) left edge pixels P(x−p,y), and (m+n) right edge pixels P(x+q,y) of a pixel to be filtered P(x,y), wherein “x”, “y”, “m”, “n”, “p” and “q” are all positive integers, and “y” takes an integer larger than “y−n” and less than “y+m” in turn; acquiring, by at least a second hardware processor, a filtered pixel value of the pixel to be filtered by using pixel values of the pixel to be filtered, the upper edge pixel, the lower edge pixel, the left edge pixels and the right edge pixels.