The purpose of this page is to make available one subjective quality assessment from IRCCyN/IVC. The experiments were conducted in our lab in normalized conditions.
Content
8 original color images were used (4 natural images: Jpeg.org DB and 4 art images: EROS DB), 120 distorted images were generated from 3 different processing, and 5 compression rates.
- JPEG ;
- JPEG2000 ;
- LAR coding ;
These algorithms have the advantage to generate very different type of distortions. Subjective evaluations were made at viewing distance of 6 times the screen height using a DSIS (Double Stimulus Impairment Scale) method with 5 categories and 20 observers. Distortions for each processing and each image have been optimised in order to uniformly cover the subjective scale.
Download
Download the IVC-LAR database (54 MB zip file)
A Microsoft Excel spreadsheet, giving all subjective quality scores is included in the above archive.
How to cite the IVC-LAR database
If you use BibTeX, here's the citation:
@misc{ivclardb,
title = {Subjective quality assessment of LAR coded art images},
author = {Autrusseau, Florent, and Babel, Marie},
year = {2009},
note = {http://www.irccyn.ec-nantes.fr/~autrusse/Databases/}
}
If you don't use BibTeX, use simply:
Florent Autrusseau, Marie Babel
Subjective quality assessment of LAR coded art images
http://www.irccyn.ec-nantes.fr/~autrusse/Databases/
Dissemination
This database was used in
- C. Strauss, F. Pasteau, F. Autrusseau, M. Babel, L. Bedat, O. Deforges, "Subjective and Objective Quality Evaluation of LAR coded art images", IEEE Intl. Conf. on Multimedia & Expo, ICME 2009, New York, USA, June 28 - July 3 2009.
This work was supported by the 'TSAR' ANR research project (ARA-SSIA-2005 project).
Many thanks to Romuald Pepion & Romain Cousseau for their valuable help in setting up the experiment.