Abstract
Visual colour assessments are qualitative and debatable. Instrumental colour measurement is necessary to assess a product’s colour or to measure indirectly the product quality and processing performance. It is now an indispensable industry tool for quality control, colour strength and difference determination, shade sorting, match prediction, whiteness measurement, etc. Though both colorimeters and spectrophotometers are used for colour measurement of object colours, the latter are distinctly superior and widely used nowadays. Spectroradiometers are used for colour measurement of light sources, and television and computer monitors. Camera-based systems for non-contact colour measuring are less accurate but, due to their lower cost, may be suitable for some industrial applications in the near future.
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