Paper Info
Title
The Cie94 Colour Difference Formula For Describing Visual Detection Thresholds In Static Noise
Abstract
The parametric factors k(L), k(C) and k(H) that scale the CIELAB components DeltaL*, DeltaC* and DeltaH* in the CIE94 colour difference formula are unity under reference conditions. When the conditions are changed, the scaling factors may be adapted to account for the influence of specific experimental conditions on perceived colour differences. We determined thresholds for the visibility of static background noise and for the visibility of a test symbol. The noise was present in only one of the L*, C* or H* dimensions, and the test symbol was an increment to the background, also in one of the dimensions L*, C* or H*. In order to maintain a perceptual uniform difference metric between test symbol and noisy background we arrived at k(L) = 0.15, k(C) = 0.52, and k(H) = 2.21, such that a just noticeable difference corresponds to DeltaE*(94)=1. When the dimension (L*, C* or h*) of the incremental test symbol is the same as that of the noise in the background, the threshold for the test symbol increases linearly with the noise. When the dimensions are different, the thresholds for the test symbol remain constant (background noise in L*) or slowly increase (background noise in C* or h*).
Year
Venue
Keywords
2004
CGIV 2004: SECOND EUROPEAN CONFERENCE ON COLOR IN GRAPHICS, IMAGING, AND VISION - CONFERENCE PROCEEDINGS
color difference,liquid crystal displays,radiometers,display devices,color vision,graphical user interfaces,signal to noise ratio,calibration,static noise,vision
Field
DocType
Citations 
Computer vision,Background noise,Mathematical analysis,Signal-to-noise ratio,Parametric statistics,Artificial intelligence,Just-noticeable difference,Noise (radio),Scaling,Color difference,Mathematics,Calibration
Conference
1
PageRank 
References 
Authors
0.53
0
2
Name
Order
Citations
PageRank
Marcel P. Lucassen1253.71
Piet Bijl210.53