Patent ID: 6269181
Filing Date: 2001-07-31
Classification: G06T,H04N

Abstract:
A method of color interpolation for a raw image composed of pixels, comprising:interpolating missing color components for a raw image pixel by selecting neighboring pixels based on color medians for blocks of Green pixels surrounding said neighboring pixels; andforming a new full color pixel having full color information, said full color information a function of said raw image pixel and said interpolated color components;wherein said interpolating comprises:determining if said raw image pixel is Green;if said raw image pixel is Green, applying a first interpolation methodology for interpolating Red and Blue missing color components, wherein the first interpolation methodology includes determining the color median of blocks surrounding adjacent Blue pixels and the color median of blocks surrounding adjacent Red pixels, and determining which adjacent Blue pixel has a surrounding block color median closest to the value of said raw image pixel and which adjacent Red pixel has a surrounding block color median closest to the value of said raw image pixel, andif said raw image pixel is not Green, applying a second interpolation methodology for interpolating a missing Green color component and one of a missing Blue and Red color component.