Noise reduced color image using panchromatic image

摘要

A method includes providing a first image having sparsely sampled panchromatic pixels and color pixels corresponding to at least two color photoresponses. The method also includes interpolating the panchromatic pixels to provide a full-resolution panchromatic image. A noise-reduced value for a particular color pixel in the first image is provided by: selecting a neighborhood of color pixels surrounding a particular color pixel, selecting a neighborhood of panchromatic pixels from the full resolution panchromatic image, and using the values from the selected neighborhoods of color and panchromatic pixels to provide the noise reduced value for the particular color pixel.