Apple Inc.
Image Enhancement System and Method

Abstract:

An image enhancement method and system is described. The method comprises receiving an input and target image pair, each of the input and target images including data representing pixel intensities; processing the data to determine a plurality of basis functions, each basis function being determined in dependence on content of the input image, determining a combination of the basis functions to modify the intensity of pixels of the input image to approximate the target image; and applying the plurality of basis functions to the input image to produce an approximation of the target image.