Title :
The effect of image´s contents on the visual color difference for digital images
Author :
Liu, Haoxue ; Huang, Min ; Xie, Meng ; Zhu, Mingzheng
Author_Institution :
Sch. of Printing & Packing Eng., Beijing Inst. of Graphic Commun., Beijing, China
Abstract :
A visual assessment experiment for evaluating color-difference is discussed based on five ISO SCID 400 digital images by altering the lightness and chroma. The psychological method of categories was used to carry out the visual experiments, 3600 visual assessments were accumulated by 12 normal color vision observers. The relationship between mean lightness, mean chroma and data was analyzed through lightness and chroma histogram to discuss the influence of the images´ contents on visual assessments. The relationship of the visual perception with the CIELAB color difference, mean lightness and mean chroma of the images was derived from the bi-variable linear regression equation.
Keywords :
computer vision; image colour analysis; regression analysis; CIELAB color difference; ISO SCID 400 digital images; bi-variable linear regression equation; chroma histogram; color vision observer; color-difference evaluation; mean chroma; mean lightness; visual assessment experiment; visual color difference; visual perception; Digital images; Equations; Fitting; Image color analysis; Linear regression; Mathematical model; Visualization; color difference evaluation; digital images; psychophysical method; visual assessment;
Conference_Titel :
Image and Signal Processing (CISP), 2010 3rd International Congress on
Conference_Location :
Yantai
Print_ISBN :
978-1-4244-6513-2
DOI :
10.1109/CISP.2010.5648248
