Patent ID: 8054348
Filing Date: 2011-11-08
Classification: G06T,H04N

Abstract:
1. A noise reduction device for receiving a pixel signal of a predetermined color space having one color component per pixel and for reducing noise in a pixel of interest, said noise reduction device comprising: an element for previously setting a highest rank of a same color as said pixel of interest; an element for acquiring neighboring pixels of the same color as said pixel of interest, said neighboring pixels of the same color being located within a predetermined vicinity of said pixel of interest; an element for storing an arrangement of said neighboring pixels of the same color sorted according to a size of the pixel value; and a correction element for replacing a pixel value of said pixel of interest by a pixel value of said highest rank of the same color when the pixel value of said pixel of interest is larger by a maximum width threshold than the pixel value of said highest rank of the same color in the arrangement of said neighboring pixels of the same color.