Boots – shoes – and leggings
Patent
1996-06-05
1997-04-08
Voeltz, Emanuel T.
Boots, shoes, and leggings
358518, 358523, G01J 346, G03F 308
Patent
active
056194277
ABSTRACT:
A plurality of color patches whose colors differ stepwise are colorimetrically analyzed to determining a relationship between color signals and stimulus signals. A method of least squares is applied to the determined relationship to determine a relationship between first hypothetical color signals and first hypothetical stimulus signals. These relationships are established as a forward conversion table. Then, a first reverse conversion table is generated from the forward conversion table using the Newton's method. The relationship between the first hypothetical color signals and the first hypothetical stimulus signals in the first reverse conversion table is replaced with a relationship between second hypothetical color signals and second hypothetical stimulus signals which have a physically matching capability, thus generating a second reverse conversion table from the first reverse conversion table. The second reverse conversion table is mapped to produce a reverse conversion table which is used to convert stimulus signals into color signals.
REFERENCES:
Photographic Science and Engineering, vol. 16, pp. 136-143, "Metameric Color Matching in Subtractive Color Photography".
Fuji Photo Film Co. , Ltd.
Smith Demetra R.
Voeltz Emanuel T.
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