engleski

Suggestion for the criterion change of the metameric colour evaluation

One number, metamery index, does not give enough information about metameric properties of the colours, as well as the colour difference is not enough to describe their varieties. Because of that, the procedure is suggested that describes metamery with the following three parameters in more details: a) color temperature (or interval of colour temperature) of the light source (Planck radiator) for which the chromacity difference of the metameric colours is minimal (the balancing colour temperature Tm or delta Tm) b) colour difference at Tm (delta Tm) c) chromacity chnage in determined chosen interval of the colour temperature which contains Tm (delta c 1000, delta c 500 or otherwise).

metamery properties; metamery index; colour temperature

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