I. Introduction
With the advent of the information age, visual media produced over billions of images have been gradually became an indispensable part of daily life. Most of images in digital applications are meant for human consumers, and images with different visual quality bring viewers different experience. Measuring the quality of images is highly desirable for designing better user systems with better visual experience. Image quality assessment (IQA) dedicates to solve this problem through creating quantitative model to simulate human visual perception and predict image quality.