“…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. The CV is normally displayed as percentage and, for a perfect agreement between them, equals to 0.…”