Patent ID: 8548234
Filing Date: 2013-10-01
Classification: G06T,H04N

Abstract:
1. An image noise reducing method comprising: determining a color reference value, which corresponds to a corrected value of the color value of a current pixel, based on the difference values between the color value of the current pixel among pixels of an image and the color values of neighboring pixels around the current pixel; determining coefficients, which represent the weights of the current pixel and the neighboring pixels, based on the similarities between the determined color reference value and the color values of the neighboring pixels and the distances between the current pixel and the neighboring pixels; and reducing a noise in the color value of the current pixel by weighted-averaging the color value of the current pixel and the color values of the neighboring pixels using the determined coefficients, wherein at least one equation used to determine the color reference value is different from at least one equation used to reduce the noise in the color value of the current pixel.