1. A method of extracting independent spectral image records from an imagewise exposed photographic element that contains superimposed silver halide exposure recording layer units that form latent images in the blue, green and red regions of the spectrum and each form a latent image indicative of exposure to a different one or portion of the blue, green and red regions of the spectrum comprising photographically processing the imagewise exposed photographic element to produce spectrally noncoextensive images, scanning the images produced by photographic processing, and deriving image records corresponding to the latent images from the scanned images, wherein N+1 of the superimposed silver halide exposure recording layer units are present, N ranging from 2 to 9, photographically processing is conducted to produce a silver image in N+1 of the exposure recording units and a dye image distinguishable from other dye images in at least N exposure recording layer units, the photographic element is in one instance scanned in a spectral region of silver absorption and minimal image dye absorption to provide a first image density record, the photographic element is also scanned in N spectral regions each within the half peak absorption band width of a different image dye to provide N additional image density records, and information from the separate image density records is converted to N+1 image records each corresponding to a different latent image in the exposed photographic element.