Measurement of ringing artifacts in JPEG images

Xiaojun Feng; Jan P. Allebach

doi:10.1117/12.645089

17 February 2006 Measurement of ringing artifacts in JPEG images

Xiaojun Feng, Jan P. Allebach

Proceedings Volume 6076, Digital Publishing; 60760A (2006) https://doi.org/10.1117/12.645089
Event: Electronic Imaging 2006, 2006, San Jose, California, United States

Abstract

Ringing artifacts refer to the noisy-looking vicinity of edges that are supposed to belong to a smooth object. In this paper, we propose a no-reference method to measure the visual impact of ringing artifacts for JPEG images. Unlike previous work, we perform a global analysis on the smooth regions in a JPEG image and classify them into different objects according to their colors and texture characteristics. We study the region activity for each type of the object in the image and assign an appropriate proxy object to each potential ringing region adjacent to an edge. The contrast between the noise levels of the ringing regions and their proxies are used to determine the visual impact of the ringing artifact. Finally, a ringing feature is computed for each edge pixel based on the feature values of the ringing artifacts in a local window. We thus obtain a ringing map to indicate the visibility of local ringing artifacts. Our preliminary results show a consistency between our model and the visual impact of the ringing artifacts.

Citation Download Citation

Xiaojun Feng and Jan P. Allebach "Measurement of ringing artifacts in JPEG images", Proc. SPIE 6076, Digital Publishing, 60760A (17 February 2006); https://doi.org/10.1117/12.645089

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available