A TRANSFORMATION TECHNIQUE FROM RGB SIGNALS TO THE MUNSELL SYSTEM FORCOLOR ANALYSIS OF TOBACCO-LEAVES

If color can be measured automatically and expressed in a way similar to human color sensation, it would be very useful in many fields where color is currently visually judged. Color is used as a factor in asse ssing the quality of many agriculture and food products. A system that can simulate human vision in color recognition and output useable qua ntitative results is therefore desirable. In this study a color analys is method was developed to simulate human color vision by using the Mu nsell color system. The RGB signal of a color image was transformed to the Munsell color system numerically via the CIE1931 and the CIE1976L a*b* color systems. Flue-cured tobacco leaf was used to test the meth od. Results showed that the developed method could simulate human colo r vision. (C) 1998 Elsevier Science B.V.