1. An image processor comprising: a primary detector array having a plurality of detector elements sensitive to an input image so as to produce an image signal; means for inducing a spatial oscillation in the input image relative to the primary detector array, whereby the image signal possesses a spatio-temporal motion signature of the induced oscillation; a secondary array of opponent center/surround detectors, each center/surround detector fed by one or more detectors from the primary detector array so as to extract improved contrast and motion information; means for calibrating each detector in the primary detector array with respect to neighboring one or more detectors in the primary and secondary detector arrays using the image signal during the oscillation; and a spatio-temporally matching filter, spatio-temporally matching the oscillation, in communication with the image detector and the oscillation means for providing enhanced image processing of the image, the matching filter being configured to filter out aspects of the image signal not associated with the induced oscillation, for filtering the image signal according to the spatio-temporal motion signature of the induced oscillation to retain those elements whose motions display modulation by the induced oscillation.