Image quality assessment based on harmonics gain/loss information

Gunawan, I.P. and Ghanbari, M. (2005) Image quality assessment based on harmonics gain/loss information. In: IEEE International Conference on Image Processing, ICIP 2005, Genoa, Italy, 11-14 September 2005, pp. 429-439. (doi: 10.1109/ICIP.2005.1529779)

Abstract

We present an objective reduced-reference image quality assessment method based on harmonic gain/loss information through a discriminative analysis of local harmonic strength (LHS). The LHS is computed from the gradient of images, and its value represents a relative degree of the appearance of blockiness on images when it is related to energy gain within an image. Furthermore, comparison between local harmonic strength values from an original, distortion-free image and a degraded, processed, or compressed version of the image shows that the LHS can also be used to indicate other types of degradations, such as blurriness that corresponds with energy loss. Our simulations show that we can develop a single metric based on this gain/loss information and use it to rate the quality of images encoded by various encoders such as DCT-based JPEG, wavelet-based JPEG 2000, or various processed images. We show that our method can overcome some limitations of the traditional PSNR.

• Item Type: Conference Proceedings
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Gunawan, Dr Irwan
• Authors: Gunawan, I.P., and Ghanbari, M.
• Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
• College/School: College of Science and Engineering > School of Computing Science
• Publisher: IEEE
• Copyright Holders: Copyright © 2005 IEEE
• First Published: First published in IEEE International Conference on Image Processing, ICIP 2005.
• Publisher Policy: Reproduced in accordance with the copyright policy of the publisher.