What do we need for assessing whiteness?

Shining Ma; Minchen Wei; Jing Liang; Ming Ronnier Luo

doi:10.1007/978-981-10-3530-2_4

What do we need for assessing whiteness?

Shining Ma, Minchen Wei, Jing Liang, Ming Ronnier Luo

The Hong Kong Polytechnic University

Research output: Chapter in book / Conference proceeding › Chapter in an edited book (as author) › Academic research › peer-review

Abstract

2017. Whiteness is an important quality parameter for surface colour industries. The CIE whiteness metric has been widely used but is known for shortcomings. For example, it cannot cover sufficient ‘white’ region in colour space and it should only be used for illuminant D65. In a psychophysical experiment, fifty samples were assessed using 2 scales. We investigated the influence of the spectral power distribution (SPD) of LED sources on whiteness perception. The results showed that the SPD can strongly affect the performance of whiteness metrics. Three versions based on CIE whiteness index were derived and they all gave similar degree of accuracy in predicting experimental data. The one with CAT02 performed quite well and is simple to use by applying the original CIE whiteness index under D65. The boundary limit can also be extended based on these data.

Original language	English
Title of host publication	Lecture Notes in Electrical Engineering
Pages	25-31
Number of pages	7
DOIs	https://doi.org/10.1007/978-981-10-3530-2_4
Publication status	Published - 1 Jan 2017

Publication series

Name	Lecture Notes in Electrical Engineering
Volume	417
ISSN (Print)	1876-1100
ISSN (Electronic)	1876-1119

Keywords

CIE whiteness
LED
Whiteness perception

ASJC Scopus subject areas

Industrial and Manufacturing Engineering

More information

10.1007/978-981-10-3530-2_4

Cite this

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title = "What do we need for assessing whiteness?",

abstract = "2017. Whiteness is an important quality parameter for surface colour industries. The CIE whiteness metric has been widely used but is known for shortcomings. For example, it cannot cover sufficient {\textquoteleft}white{\textquoteright} region in colour space and it should only be used for illuminant D65. In a psychophysical experiment, fifty samples were assessed using 2 scales. We investigated the influence of the spectral power distribution (SPD) of LED sources on whiteness perception. The results showed that the SPD can strongly affect the performance of whiteness metrics. Three versions based on CIE whiteness index were derived and they all gave similar degree of accuracy in predicting experimental data. The one with CAT02 performed quite well and is simple to use by applying the original CIE whiteness index under D65. The boundary limit can also be extended based on these data.",

keywords = "CIE whiteness, LED, Whiteness perception",

author = "Shining Ma and Minchen Wei and Jing Liang and Luo, {Ming Ronnier}",

year = "2017",

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doi = "10.1007/978-981-10-3530-2_4",

language = "English",

series = "Lecture Notes in Electrical Engineering",