1. An image decoder capable of increasing the resolution of a multi-spectral image comprising: an image storage capable of receiving and storing a multi-spectra image as at least two separable planes of digitized spectral components, each of said planes comprised of a plurality of pixels; a processor for increasing pixel density in at least one of said separable planes by determining an interstitial pixel value in said plane by a process of correlated decoding, wherein said interstitial pixel value is set so that a first difference value between said interstitial pixel value and a local average value in one of said planes is correlated to a second difference value between an known pixel value at a corresponding pixel location in a different plane and a local average in said different plane; and an image combined/driver capable of joining said at least two separable planes including said increased density plane(s) into a representation of a resolution enhanced multi-spectral visual image.