ASTM International

Standard Practice for Calculation of Weighting Factors for Tristimulus Integration
 N E2022

Annotation

This practice describes the method to be used for calculating tables of weighting factors for tristimulus integration using custom spectral power distributions of illuminants or sources, or custom color-matching functions.

This practice provides methods for calculating tables of values for use with spectral reflectance or transmittance data, which are corrected for the influences of finite bandpass. In addition, this practice provides methods for calculating weighting factors from spectral data which has not been bandpass corrected. In the latter case, a correction for the influence of bandpass on the resulting tristimulus values is built in to the tristimulus integration through the weighting factors.

The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to its use.

Автоматический перевод:

Утвержденный технологический процесс для вычисления взвешивания факторов для интеграции Tristimulus

Эта практика описывает метод, который будет использоваться для вычисления таблиц взвешивания факторов для трехцветной интеграции с помощью пользовательского спектрального распределения электроэнергии источников света или источников или пользовательских функций согласования цветов.