Patent ID: 8630031
Filing Date: 2014-01-14
Classification: H04N

Abstract:
1. A method of adjusting a scanned image, comprising: receiving light from an image that has been scanned at a color image sensor head; generating, based on the image scanned at the color image sensor head, a first color component sensor value and a second color component sensor value for a pixel of the image, wherein the first and second color component sensor values do not correspond to a luminance value; and interpolating a plurality of neighboring first color component values, from a two-dimensional lookup table (“2-D LUT), that correspond to the first color component sensor value; replacing the first color component sensor value with a modified first color component sensor value based on the interpolation of the plurality of neighboring first color component values; interpolating a plurality of neighboring second color component values, from the 2-D LUT, that correspond to the second color component sensor value; replacing the second color component sensor value with a modified second color component sensor value based on the interpolation of the plurality of neighboring second color component values, and transmitting the modified first color component sensor value and the modified second color component sensor value to be displayed on a display device, wherein the modified first color component sensor value and the modified second color component sensor value are in a two-color component color space, and wherein the 2-D LUT is tailored to correct an imperfection in the color image sensor head by including calibrated color component sensor values to correct for a known imperfection in the color image sensor head, the imperfection being a measure of a difference between colors of the image and colors generated by the color image sensor head.