1. A method for illumination correction of an image, the method comprising: receiving, using a computer, a color image and an infrared intensity image; converting the color image to a colorspace image comprising a channel corresponding to a brightness value for each pixel; comparing, for each pixel of the colorspace image, the brightness value of the pixel to a brightness threshold value; and creating a hybrid intensity image by using a fusion formula based on the brightness value of a pixel of the colorspace image and an infrared intensity value of a corresponding pixel of the infrared intensity image by applying the fusion formula to each pixel with a brightness value greater than the brightness threshold value, and not applying the fusion formula to each pixel with a brightness value lower than the brightness threshold value.