Studying the effect of optimizing image quality in salient regions at the expense of background content

Hani Alers; Judith A. Redi; Hantao Liu; Ingrid Heynderickx

doi:10.1117/1.JEI.22.4.043012

6 November 2013 Studying the effect of optimizing image quality in salient regions at the expense of background content

Hani Alers, Judith A. Redi, Hantao Liu, Ingrid Heynderickx

Author Affiliations +

Journal of Electronic Imaging, Vol. 22, Issue 4, 043012 (November 2013). https://doi.org/10.1117/1.JEI.22.4.043012

Abstract

Manufacturers of commercial display devices continuously try to improve the perceived image quality of their products. By applying postprocessing techniques on the incoming signal, they aim to enhance the quality level perceived by the viewer. These postprocessing techniques are usually applied globally over the whole image but may cause side effects, the visibility and annoyance of which differ with local content characteristics. To better understand and utilize this, a three-phase experiment was conducted where observers were asked to score images that had different levels of quality in their regions of interest and in the background areas. The results show that the region of interest has a greater effect on the overall quality of the image than the background. This effect increases with the increasing quality difference between the two regions. Based on the subjective data we propose a model to predict the overall quality of images with different quality levels in different regions. This model, which is constructed on empirical bases, can help craft weighted objective metrics that can better approximate subjective quality scores.

Citation Download Citation

Hani Alers, Judith A. Redi, Hantao Liu, and Ingrid Heynderickx "Studying the effect of optimizing image quality in salient regions at the expense of background content," Journal of Electronic Imaging 22(4), 043012 (6 November 2013). https://doi.org/10.1117/1.JEI.22.4.043012

Published: 6 November 2013

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