Title :
Objective picture quality scale for color image coding
Author :
Kotani, K. ; Gan, Q. ; Miyahara, M. ; Algazi, V.R.
Author_Institution :
JAIST, Ishikawa, Japan
Abstract :
This paper considers an objective picture quality scale for color images (PQScolor). PQScolor approximates the mean opinion score satisfactorily, it takes into account the color perception by using color difference and the properties of visual perception for global features and for localized disturbances. There are two type systems, PQScolor1 is based on Godlove´s color difference and PQScolor2 is based on H, V, C signal difference. The correlation coefficient between PQScolor (1, 2) and MOS is more than 0.9, which is very high compared to the value 0.34 obtained for the mean color difference scale
Keywords :
colour vision; correlation theory; image coding; visual perception; Godlove´s color difference; PQScolor; color difference; color image coding; color perception; correlation coefficient; global features; localized disturbances; mean opinion score; objective picture quality scale; signal difference; visual perception; Color; Decoding; Degradation; Distortion measurement; Humans; Image coding; Image processing; Pixel; Testing; Visual perception;
Conference_Titel :
Image Processing, 1995. Proceedings., International Conference on
Conference_Location :
Washington, DC
Print_ISBN :
0-8186-7310-9
DOI :
10.1109/ICIP.1995.537598
