Perceptual image quality assessment (IQA) uses a computational model to assess the
image quality in a fashion consistent with human opinions. A good IQA model should
consider both the effectiveness and efficiency. To meet this need, a new model called
multiscale contrast similarity deviation (MCSD) is developed in this paper. Contrast is a
distinctive visual attribute closely related to the quality of an image. To further explore the
contrast features, we resort to the multiscale representation. Although the contrast and the …