Full Reference Image Quality Assessment based on Local Statistics

TECH-LPI2014-01. This work is an original Technical Report of the LPI, Universidad de Valladolid, Spain, Jan. 2014.

Abstract: Assessment of image quality based on structural information is a relevant topic in the image processing field. A new method to assess image quality is presented. It is based on the comparison of first and second order moments of the local variance distribution of two images. This new quality index is better suited to assess the non-stationarity of images, therefore it explicitly focuses on the image structure. A second index is also proposed to be used for low noise cases. This new quality indexes are compared to state-of-the art objective methods for a wide range of signal transformations and images.