Patent ID: 6377330
Filing Date: 2002-04-23
Classification: G03B,G03D,H04N

Abstract:
A process for making a reference chart for calibrating a printer of a photofinishing system, the process comprising the steps of:(a) photographing a reference scene onto a photographic capture film; (b) determining film characteristics of the photographic capture film; (c) s canning an image on the photographic capture film to generate a captured image and a signal corresponding to the captured image; (d) generating independent color signals corresponding to signals sensed in each color channel of the capture film; (e) generating a color image signal from the color signals of said step (d) representing imagewise exposure levels necessary to produce a photographic print of preselected balance of the reference scene, on a selected type of photographic medium, which exposure levels can be obtained from a negative of the reference scene captured on a product film type; (f) generating further image signals according to said step (e) but representing different exposure levels necessary to produce photographic prints of balances offset from the preselected balance; and (g) printing the image signals generated by said steps (e) and (f) onto a selected type of photographic medium.