ASTM-E2022 Standard Practice for Calculation of Weighting Factors for Tristimulus Integration

ASTM-E2022 - 2016 R21 EDITION - CURRENT
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Standard Practice for Calculation of Weighting Factors for Tristimulus Integration
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Scope

1.1 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 funtions.

1.2 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.

1.3 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 use.

Keywords

color-matching functions; illuminant; illuminant-observer weights; source; tristimulus weighting factors; ICS Number Code 85.060 (Paper and board)

To find similar documents by ASTM Volume:

06.01 (Paint -- Tests for Chemical, Physical, and Optical Properties; Appearance)

To find similar documents by classification:

85.060 (Paper and board)

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Document Number

ASTM-E2022-16R21

Revision Level

2016 R21 EDITION

Status

Current

Modification Type

New

Publication Date

July 1, 2021

Document Type

Practice

Page Count

10 pages

Committee Number

E12.04