Photographic elements for producing blue, green, and red exposure records of the same hue and methods for the retrieval and differentiation of the exposure records

A method of obtaining from an imagewise exposed photographic element separate records of the imagewise exposure to each of the blue, green and red portions of the spectrum comprising

• (a) photographically processing an imagewise exposed photographic element comprised of
• a support and, coated on the support,
• a sequence of superimposed blue, green and red recording silver halide emulsion layer units that produce images of the same hue upon processing, one of the emulsion layer units forming a first emulsion layer unit in the sequence coated nearest the support, another of the emulsion layer units forming a last emulsion layer unit in the sequence coated farthest from the support and an intermediate emulsion layer unit located between the first and last emulsion layer units, and
• (b) obtaining separate blue, green and red exposure records from the photographic element,
• wherein
• (c) the photographic element is additionally comprised of
• interposed between the first emulsion layer unit and the intermediate emulsion layer unit a first interlayer unit for transmitting to the first emulsion layer unit electromagnetic radiation this emulsion layer unit is intended to record and
• interposed between the last emulsion layer unit and the intermediate emulsion layer unit a second interlayer unit for transmitting to the intermediate and first emulsion layer units electromagnetic radiation these emulsion layer units are intended to record,
• one of the first and second interlayer units being capable of reflecting electromagnetic radiation within at least one wavelength region and the remaining of the first and second interlayer units being capable of reflecting or absorbing electromagnetic radiation within at least one wavelength region,
• (d) the imagewise exposed photographic element is photographically processed to produce a silver image in each of the emulsion layer units,
• (e) the photographic element is reflection scanned utilizing reflection from one of the first and second interlayer units to provide a first record of the image information in one of the first and last emulsion layer units and is reflection scanned utilizing reflection or absorption of the remaining of the first and second interlayer units to provide a second record of the image information in one other of the emulsion layer units, and
• (f) the photographic element is scanned through the first and second interlayer units and all of the emulsion layer units to provide a third record representing a combination of images in all of the emulsion layer units, and
• (g) the first, second and third records are compared to obtain separate blue, green and red exposure records.