1. A digital camera comprising: a broadband channel including a first optics component and a first image sensor integrated in a substrate and configured to directly detect luminance data; at least one color channel each of which includes an optics component and an image sensor integrated in a substrate and configured to directly detect chrominance data; and a processing component coupled to the first and second channels and configured to directly combine outputs of the first and second channels to provide an image in YCrCb color space.