Boots – shoes – and leggings
Patent
1995-02-01
1997-03-18
Voeltz, Emanuel T.
Boots, shoes, and leggings
364525, 355 35, 355 32, 396563, G02F 100
Patent
active
056129033
ABSTRACT:
The color balance of color photographic printing paper is determined by making three successive exposures of separate portions of a sample sheet of printing paper through a neutral-color optical wedge of linear density gradient, each exposure consisting essentially of a different primary color of light of predetermined intensity and duration selectively to stimulate each of the three color-sensitive emulsion layers in the printing paper. The three images produced upon development provide a means for objective quantitative measurement of the relative absorptions for red, green, and blue light by each of the dye images. The relative absorptions are arrayed in the form of 3.times.3 mathematical matrices. Solving the matrices in several permutations allows the comparison of actual dye densities that form any one of a number of standard colors with the dye densities that form the image of a test print. The differences between the compared dye densities are converted by division of the differences by the slope of the paper's sensitometric curve to log Exposure differences. The log Exposure differences are delivered as test program correction factors.
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Voeltz Emanuel T.
Wachsman Hal D.
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