Method for judging a color difference using rules fuzzy inference and apparatus therefor
First Claim
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1. A method of judging whether the color difference between a color of an object and a reference color is substantial, said method comprising the steps of:
- conveying the object to a color measurement station,measuring said color of the object,calculating a color difference between said color of the object and said reference color,determining whether or not said color difference is within a predetermined range in which it is difficult to determine if said color difference is definite or negligible, andjudging whether or not said color difference is substantial, when it is within said predetermined range, with use of Fuzzy inference.
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Abstract
Method for judging a color difference between a color of an object and a reference color and apparatus therefor in which it is judged at first if the color difference exists within a predetermined range in which it is difficult to determine whether or not the color difference is definite and, if it exists within the predetermined range, the color difference is judged whether it is substantial or nealigible according to rules according to Fuzzy inference.
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14 Claims
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1. A method of judging whether the color difference between a color of an object and a reference color is substantial, said method comprising the steps of:
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conveying the object to a color measurement station, measuring said color of the object, calculating a color difference between said color of the object and said reference color, determining whether or not said color difference is within a predetermined range in which it is difficult to determine if said color difference is definite or negligible, and judging whether or not said color difference is substantial, when it is within said predetermined range, with use of Fuzzy inference. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. Apparatus for judging a color difference between a color an object and a reference color comprising;
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means for entering color data of said reference color, means for conveying the object to a color measurement station, said station including means for measuring said color of the object to obtain color data thereabout, means for calculating a color difference between said color of the object and said reference color, means for determining whether or not said color difference is within a predetermined range in which it is difficult to determine if said color difference is definite or negligible, and means for judging whether or not said color difference is substantial, when it is within said predetermined range, with use of Fuzzy inference. - View Dependent Claims (11, 12, 13, 14)
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Specification