Density range control in a photograph by variation of hue...

Details Density range control in a photograph by variation of hue... Density range control in a photograph by variation of hue...

2006-08-01

2006-08-01

Perkey, W. B. (Department: 2851)

Photography

Color image using monochrome film

C348S096000, C358S002100, C358S302000, C358S518000

Reexamination Certificate

active

07085490

ABSTRACT:
A negative density range control system uses color hue contrast to provide a print of a picture, by comparing the relationship between negative hue density and print emulsion density requirement and providing an appropriate density for a printing process, whether converting a positive digital image to negative digital image with a specific hue density color or making a print by contact printing a hue density negative rendered from a digital image file.

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Lyons, Ian. “Black & White from Colour.” Nov. 2001. (http://homepage.mac.com/ilyons/pdf/tutorial2-6.PDF); p. 1-8.

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