Evaluation of light sources based on colour appearance and colour preference assessments
Some issnes<1> have been identified for the current CIE colour rendering index (CRI), especially for evaluating white light emitting diode (LED) sources. Recently, the colour quality scale (CQS) has been proposed by NIST<2>. One of its major features is the saturation factor, for which a specimen under the test lamp is only penalised for decreasing chroma relative to that under the reference source. Psychophysical experiments were conducted to clarify this effect by evaluating the quality of two light sources. The results showed that an increase in objects colourfulness was not preferred by observers. Finally, the CRI and CQS methods were modified based on CAM02-UCS<3>.
Colour rendering Colour Quality Scale CIECAM02 Colour preference
Cheng Li Ming Ronnier Luo Changjun Li
Department of Colour Science, University of Leeds, UK
国际会议
杭州
英文
339-341
2007-07-12（万方平台首次上网日期，不代表论文的发表时间）