Color rendering index: Difference between revisions

Revision as of 15:19, 18 December 2005

Revision as of 15:20, 18 December 2005

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which gives the colour rendering index with respect to each sample. The general colour rendering index <math>R_a</math> is then the average of these eight separate indices.

Although an objective measure, the CRI has come under a fair bit of criticism in recent years as it does not always correlate well with the subjective colour-rendering quality for real scenes, particularly for modern (ege.g. fluoresentfluorescent) lightsources with spikey emission specta, or white LEDs. It is understood that the CIE is looking at developing newer colour-rendering performance metrics.