31 October 2016 The water colority measurement based on HSV chromaticity
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Abstract
A method of measuring water colority based on HSV chromaticity (H hue, S saturation, V value) system is proposed. The measurement system is composed of halogen lamp, sample cell and spectrometer. The spectrum data of transmission light captured by spectrometer is used to calculate the XYZ tristimulus values which is then converted to HSV chromaticity. The colority and saturation value shows a good functional relationship which is calibrated in the experiment. Therefore the water colority can be calculated by the saturation in the HSV chromaticity. Since the hue value is acquired at the same time, the method can be adopted to test water sample with different hue. Moreover, the V value is an independent component, so the instability of light source has no influence on the measurement. The colority obtained by the calibrated function coincides with the standard solution.
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Jun Wang, Yang Pan, Quanying Wu, Fan Wang, Junliu Fan, "The water colority measurement based on HSV chromaticity", Proc. SPIE 10021, Optical Design and Testing VII, 1002124 (31 October 2016); doi: 10.1117/12.2247792; https://doi.org/10.1117/12.2247792
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