Process for the extraction of spectral image records from dye image forming photographic elements

A method of extracting independent spectral image records from an imagewise exposed photographic element that contains three 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 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 record corresponding to the latent images from the scanned images,
• wherein
• a different image dye is formed during photographic processing in two of the exposure recording layer units and only a silver image is formed during photographic processing in a third of the exposure recording layer units,
• the photographic element is in one instance scanned in a spectral region of silver absorotion and minimal image dye absorption to provide a first image density record,
• the photographic element is also scanned in two spectral regions each within the half peak absorption band width of a different image dye to provide two additional image density records, and
• information from the separate image density records is converted to three image records each corresponding to different latent image in the exposed photographic element.

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,
• photographic processing is conducted to produce a silver image in N+1 of the exposure recording layer 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,
• the density of the first image density record is subtracted from the density of each of the N additional image density records to obtain a net dye image density for each of the additional image density records,
• each net dye image density is then employed to obtain a corresponding silver image density, and
• the corresponding silver image densities are then subtracted from the first image density record to obtain the silver image density in the recording layer unit that is in addition to the recording layer units providing the N additional image density records, thereby providing N+1 image records each corresponding to a different latent image in the exposed photographic element.