Photographic color printer

Details Photographic color printer Photographic color printer

1993-09-30

1995-12-12

Rogers, Scott A.

Facsimile and static presentation processing

Natural color facsimile

358512, 355 32, H04N 146

Patent

active

054755069

ABSTRACT:
In a color photographic printer of the type having a film scanner having a 50% green spectral response between 522.+-.5 nm and 570.+-.2.5 nm and peaking at 550 nm, a lowpass cutoff filter for lowering the upper cutoff wavelength of the green channel response is added to the green channel to improve the color correction of the printer for all color films presently in use.

REFERENCES:
patent: 4050807 (1977-09-01), Barbieri
patent: 4589766 (1986-05-01), Fursich et al.
patent: 5043771 (1991-08-01), Shibata et al.
Objectives and Methods of Density Measurement in Sensitometry of Color Films by Franklin C. Williams, Feb. 1950, pp. 104-112.
The Influence of Film, Paper, and Printer Spectral Characteristics on Photofinishing Performance by W. C. Kress and P. J. Alessi, Apr. 1983, pp. 58-62.

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