Patent ID: 8699816
Filing Date: 2014-04-15
Classification: G06T

Abstract:
1. A method of enhancing detail of an image, the method comprising: calculating, using a processor, a noise weight corresponding to a probability that a center pixel, located in a block of pixels in a region of the image, is noise by using a pixel value difference between the center pixel and a surrounding pixel located in the block of pixels; calculating a first substitution value for the center pixel based on the noise weight; and calculating a second substitution value for the center pixel by using the noise weight and a sharpen filter, and classifying pixels as either a noise pixel or a noise-free pixel, wherein the sharpen filter is applied to a pixel classified as a noise-free pixel, and a pixel classified as a noise pixel maintains an original value, and wherein the noise-free pixel and the noise pixel are classified according to a sum of noise weights calculated for the center pixel and each surrounding pixel.