WSEAS Transactions on Signal Processing
Print ISSN: 1790-5052, E-ISSN: 2224-3488
Volume 12, 2016
A New Method of Image Quality Assessment
Authors: , , ,
Abstract: In image processing, one of the important items is how to measure the quality of an image. This paper attempts to establish an assessment model corresponding to mean human perception, or mean opinion score (MOS). Human vision system has a feature of being more sensitive to the brightness change of an area than to that of discrete points, and being more sensitive to the change of moderate brightness than to the change of very bright one and very dark one. According to such a feature, by defining brightness discrimination and error density, using gradient as well, this paper proposes a new method of image quality assessment. The new method is tested on TID2008 data and the results are compared with those of existing methods.