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Color quality scale

机译:色彩质量等级

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摘要

The color rendering index (CRI) has been shown to have deficiencies when applied to white light-emitting-diode-based sources. Furthermore, evidence suggests that the restricted scope of the CRI unnecessarily penalizes some light sources with desirable color qualities. To solve the problems of the CRI and include other dimensions of color quality, the color quality scale (CQS) has been developed. Although the CQS uses many of elements of the CRI, there are a number of fundamental differences. Like the CRI, the CQS is a test-samples method that compares the appearance of a set of reflective samples when illuminated by the test lamp to their appearance under a reference illuminant. The CQS uses a larger set of reflective samples, all of high chroma, and combines the color differences of the samples with a root mean square. Additionally, the CQS does not penalize light sources for causing increases in the chroma of object colors but does penalize sources with smaller rendered color gamut areas. The scale of the CQS is converted to span 0-100, and the uniform object color space and chromatic adaptation transform used in the calculations are updated. Supplementary scales have also been developed for expert users.
机译:当将显色指数(CRI)应用于基于白色发光二极管的光源时,已显示出不足之处。此外,有证据表明,CRI的受限范围不必要地惩罚了某些具有理想颜色质量的光源。为了解决CRI的问题并包括颜色质量的其他方面,已经开发了颜色质量标度(CQS)。尽管CQS使用了CRI的许多元素,但仍存在许多基本差异。像CRI一样,CQS是一种测试样本方法,用于将一组反射样本在测试灯照射下的外观与在参考光源下的外观进行比较。 CQS使用较大色度的反射样本集,并将样本的色差与均方根结合起来。另外,CQS不会因导致对象颜色的色度增加而对光源进行惩罚,而是会对具有较小渲染色域区域的光源进行惩罚。 CQS的比例转换为范围0-100,并且更新了计算中使用的均匀对象色彩空间和色适应转换。还为专家用户开发了补充量表。

著录项

  • 来源
    《Optical engineering》 |2010年第3期|p.033602.1-033602.16|共16页
  • 作者

    Wendy Davis; Yoshi Ohno;

  • 作者单位

    National Institute of Standards and Technology 100 Bureau Drive, MS 8442 Gaithersburg, Maryland 20899-8442;

    National Institute of Standards and Technology 100 Bureau Drive, MS 8442 Gaithersburg, Maryland 20899-8442;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    colorimetry; color rendering; light-emitting diodes;

    机译:比色法显色;发光二极管;

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