Patent ID: 7471843

Claim:
A method for filtering an image for displaying said image on a display comprising: (a) filtering said image using a set of filters that reduce an error metric, wherein said filters are based upon a constrained optimization that includes at least one constraint based on a two-dimensional geometric parameter of said display, and wherein said error metric is perceptually weighted quadratic of a two-dimensional transform of a function having the form E n =M n á n −Cx n , where “E” represents said error metric, “x” represents samples from said image, “á” represents scalar display subpixel values, “n” denotes subpixel locations, “C” represents an operation that converts x n into an opponent color space, and M n is a function of C n of the form M n =aC n mod a, “a” being the number of display subpixels per pixel; (b) re-sampling said filtered image to a lower resolution; (c) displaying said re-sampled image on said display.