Patent ID: 6618503
Filing Date: 2003-09-09
Classification: G06T,H04N

Abstract:
A method for interpolating an image comprising a two-dimensional array of pixel values, each pixel value representing an intensity for said image at a corresponding point in said image value, said image including a plurality of pixels having missing values and a plurality of measured pixel values having known values; said method comprising:(a) filing in the missing pixel values; (b) transforming the image to luminance-chrominance space; (c) filtering luminance values of said transformed image with a low-pass filter having an anisotropy that varies with position in said image; (d) filtering chrominance values of said transformed image with an isotropic filter; (e) transforming the transformed image back to its original color space; (f) resetting each measured pixel value to said known value; and (g) repeating steps (b)-(f).