The development of the CIE 2000 colour‐difference formula: CIEDE2000

Luo, M. Ronnier; Cui, Guihua; Rigg, B.

doi:10.1002/col.1049

Cited by 1,561 publications

(1,081 citation statements)

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“…Second, CV is often used as a measure of the 'observer accuracy' which represents the mean discrepancy of a set of psychophysical data obtained from a panel of observers from their mean value. This term has been widely used in colour appearance and difference studies (Luo et al, 2001(Luo et al, , 2006 and usage of it was also verified in image quality studies. (Kim et al, 2008(Kim et al, , 2010a(Kim et al, , 2010b The original CV is a normalised measure of dispersion for a repeated measurement but was applied to measure the degree to which a set of data points varies in this study.…”

Section: Experiments 3: Statistical Analysis For Observer Variationmentioning

confidence: 94%

Portable LCD Image Quality: Effects of Surround Luminance

Kim¹

2011

Features of Liquid Crystal Display Materials and Processes

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Section: Experiments 3: Statistical Analysis For Observer Variationmentioning

confidence: 94%

Portable LCD Image Quality: Effects of Surround Luminance

Kim¹

2011

Features of Liquid Crystal Display Materials and Processes

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“…The colour difference (ΔE 00 ) among different numbers of printed ink layers was calculated using the CIEΔE2000 L*a*b* equation for colour differences [42,43]:…”

Section: Typographic and Colorimetric Properties Of Prints Propertiesmentioning

confidence: 99%

Label legibility influenced by different number of white ink layers

2016

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Original scientific paper A different number of white ink layers printed with the inkjet technology can influence the legibility of prints. Therefore, we tested how to achieve best legibility of printed text and labelling information, considering the changes in colorimetric and typographic properties. The prints were made with an inkjet printer and three different numbers of white ink layers were used. Three different typefaces in four different sizes, appropriate for labelling, were tested. The colour differences were determined colorimetrically and the differences in the typographic tonal density of typefaces were measured with an image analysis. The legibility research was performed with the help of observers who read the printed text in the combination of white ink on black paper and black ink on white paper. The results led to the conclusion that with regard to the colorimetric and typographic quality and effectiveness, the legibility was the best at two layers of white ink. Keywords: colorimetric properties; inkjet; labelling; legibility; packaging design; typography Čitljivost etiketnih deklaracija ostvarenih s višebrojnim nanošenjem bijele bojeIzvorni znanstveni članak Različit broj otisnutih slojeva bijele boje utječe na čitljivost otisaka. U ovom radu testirana je mogućnost postizanja najbolje čitljivosti otisnutog teksta na etiketi, zajedno sa analizom tipografskih svojstava i ostvarenih kolornih promjena. Otisci otisnuti na UV tintnom pisaču imaju mogućnost ostvarivanja većeg broja istih separacija (tri sloja bijele). Pritom su varirana tri tipa i četiri veličine pisma (karakteristična za etiketne deklaracije). Kolorne promjene su određene kolorimetrijski, te izračunom tipografske optičke gustoće slova primjenom slikovne analize. Ispitivanje čitljivosti je izvršena uz pomoć ispitanika koji su čitali tekst u kombinaciji: bijela podloga -crni tekst i crna podloga -bijeli tekst. Rezultati pokazuju da bez obzira na ostvarene kolorimetrijske promjene i različitu kvalitetu tipografske reprodukcije, najbolja čitljivost je ostvarena tiskom u dva sloja.

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“…The map of the London metro. 4 In the CIEDE2000 distance, some weighting coefficients have to be chosen. We use the ratio…”

Section: Mathematical Formulation Of the Problemmentioning

confidence: 99%

“…and hue h ¼arctan(b/a) to be more important than the difference in lightness L. For more information about this color difference formula, see [4].…”

Section: Mathematical Formulation Of the Problemmentioning

confidence: 99%