Evaluation of the crispening effect using CRT-displayed colour samples

John Haozhong Xin, C. C. Lam, M. R. Luo

Research output: Journal article publicationJournal articleAcademic researchpeer-review

21 Citations (Scopus)


In this study, the crispening effect was clearly observed when 38 neutral-coloured sample pairs with only lightness differences were assessed under 5 neutral backgrounds of different lightness values. The sample pairs are CRT-based colours, and they are selected along the CIELAB L* axis from 0 to 100. The magnitude of colour difference of each pair is 5.0 CIELAB units. The visual assessment results showed that there is a very large crispening effect. The colour differences of the same pair assessed under different backgrounds could differ by a factor of up to 8 for a sample pair with low lightness. The perceived colour difference was enlarged when the lightness of a sample pair was similar to that of the background. The extent of crispening effect and its quantification are discussed in this investigation. The performances of five colour-difference equations were also tested, including the newly developed CIEDE2000.
Original languageEnglish
Pages (from-to)374-380
Number of pages7
JournalColor Research and Application
Issue number5
Publication statusPublished - 1 Oct 2004


  • Background
  • Colour difference formulae
  • Crispening effect
  • Visual colour assessment

ASJC Scopus subject areas

  • Human Factors and Ergonomics
  • General Chemistry
  • General Chemical Engineering


Dive into the research topics of 'Evaluation of the crispening effect using CRT-displayed colour samples'. Together they form a unique fingerprint.

Cite this