Patent ID: 8274583

Claim:
An image noise reduction system comprising: an image sensor; a memory for storing image data, the image data representative of an image and comprising a plurality of pixels and a center point, wherein the center point is representative of the center of the image sensor's light intensity falloff function; and a processor programmed to perform a method comprising: reading a first portion of the image data corresponding to a first plurality of pixels, wherein each pixel in the first plurality of pixels has a color value, and wherein one pixel within the first plurality of pixels is a first center pixel; computing a first value for the first plurality of pixels, wherein the first value is based at least in part on the color value of each pixel in the first plurality of pixels having a color value that differs from the color value of the first center pixel by less than a threshold value, wherein the threshold value for the first center pixel is determined at least in part by the distance between the first center pixel and the center point; transforming the color value of the first center pixel to be equal to the computed first value; and storing the transformed color value of the first center pixel in the memory.