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Direct Interpretation of Colorimetric Readings in Terms of Colour Tolerance *
Author(s) -
Bell J. R.
Publication year - 1969
Publication title -
journal of the society of dyers and colourists
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 49
eISSN - 1478-4408
pISSN - 0037-9859
DOI - 10.1111/j.1478-4408.1969.tb02888.x
Subject(s) - computer science , chromatic scale , colour difference , graph , interpretation (philosophy) , value (mathematics) , rgb color model , plot (graphics) , colorimetry , mathematics , arithmetic , algorithm , statistics , artificial intelligence , computer vision , theoretical computer science , optics , combinatorics , physics , programming language
The practical use of any of the uniform colour co‐ordinate systems in colour‐tolerance work requires tedious and time‐consuming calculations. A simple and quick interpretation of the colorimetric colour difference of a production lot relative to a given standard value is desirable. This paper describes a graphical procedure by which this may be achieved, in particular for Colormaster readings interpreted in the Adams Chromatic‐Value system. For a given tolerance in N.B.S. units and for each colour standard, a graph is drawn and each production lot is plotted directly with reference to its RGB Colormaster readings. This plot provides ( a ) an immediate assessment of whether the lot is within the given tolerance and ( b ) a record of the colour‐tolerance performance in the production of the particular colour.