Camera image processing system for Bayer CFA based imaging devices

This work focuses on a camera image processing system suitable for cost-effective single-sensor imaging devices such as image-enabled wireless phones and pocket-size imaging devices. The color filter array (CFA) zooming, CFA interpolation and CFA based postprocessing steps, employed in the proposed system, are unified to use a simple linear interpolator defined over the Bayer CFA components. Using the spectral correlation characteristics expressed through the differences between the available color components, the proposed system eliminates color artifacts in the enlarged, full color camera output.