TY - JOUR TI - Image quality assessment: from error visibility to structural similarity AU - Zhou Wang AU - Alan C. Bovik AU - Hamid R. Sheikh AU - Eero P. Simoncelli PY - 2004 JO - IEEE Transactions on Image Processing DO - 10.1109/tip.2003.819861 UR - https://doi.org/10.1109/tip.2003.819861 AB - Objective methods for assessing perceptual image quality traditionally attempted to quantify the visibility of errors (differences) between a distorted image and a reference image using a variety of known properties of the human visual system. Under the assumption that human visual perception is highly adapted for extracting structural information from a scene, we introduce an alternative complementary framework for quality assessment based on the degradation of structural information. As a specific example of this concept, we develop a Structural Similarity Index and demonstrate its promise through a set of intuitive examples, as well as comparison to both subjective ratings and state-of-the-art objective methods on a database of images compressed with JPEG and JPEG2000. ER -