ANSI/IES TM-30-20

Version 1.0.1 (209 KB) by Dorukalp Durmus
ANSI/IES TM-30-20 a method to evaluate light source color rendition
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Updated 4 Aug 2021

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ANSI/IES TM-30-20, an American National Standard method for evaluating light source color rendition that is published by the Illuminating Engineering Society, is a system of several related measures and graphics that can be used together to effectively evaluate and communicate a light source’s color rendering properties.
The standard is freely available here: https://store.ies.org/product/tm-30-20-ies-method-for-evaluating-light-source-color-rendition/
The function input is the spectral power distribution (SPD) of a test light source, which should be a 401x1 matrix representing the test source SPD at 1 nm intervals between 380 nm and 780 nm.
The outputs of the ANSI/IES TM-30-20 are fidelity index (Rf), gamut index (Rg), correlated color temperature (CCT), and Duv.

Cite As

Dorukalp Durmus (2025). ANSI/IES TM-30-20 (https://in.mathworks.com/matlabcentral/fileexchange/95378-ansi-ies-tm-30-20), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2019b
Compatible with R2019b and later releases
Platform Compatibility
Windows macOS Linux
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Version Published Release Notes
1.0.1

This version matches with IES TM-30 Excel spreadsheet 2.04 and C code.

1.0.0