Eoptis CLM-194, Руководство пользователя

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CLM-194
User Guide
EOPTIS SRL
Via Alto Adige, 152 – 38121 Trento (TN) – ITALY
Tel.: +39 0461 260 552 – Fax: +39 0461 260 617
www.eoptis.com – info@eoptis.com
Page 14 of 29
CLM-194
Rev. 1.05 - 06/2014
Copyright © 2013-2014 EOPTIS SRL
5.3 C
OLOUR
D
IFFERENCE
C
HECK
The Colour Difference Check function performs a fast check of the colour difference between the
Measure and the Reference colours, a group of Reference colours or the entire Reference database,
providing a quantification of the CIE 1976 a,b colour difference (CIELAB) ΔE*
ab
. Measure is ranked
according to three threshold levels set by user, allowing to definition of acceptance or rejection
criteria based on objective elements. The result can be used for the quality control of a product, to
evaluate the colour aging of an object and for many other applications.
Colour Difference Check interface
Item Description
① Colour Difference Check mode selector
② Measure colour display area
③ Reference colour display area
④ Reference Mode selector
⑤ CIELAB ΔE*
ab
colour difference between Measure and Reference
⑥ CIELAB ΔL* lightness difference, CIELAB ΔC*
ab
chroma difference, Δa* and Δb* components difference
between Measure and Reference
⑦ Acceptance Thresholds values for ΔE*
ab
colour difference
⑧ Visual representation of the ΔE*
ab
colour difference compared to the Acceptance Thresholds
⑨ Acceptance threshold validation result
⑩ Acceptance class (rank) of the current Measure
⑪ Plot of the current Measure in the L*a*b* colour space with Reference set at the origin of axes.
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