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.


8 original color images were used (4 natural images: DB and 4 art images: EROS DB), 120 distorted images were generated from 3 different processing, and 5 compression rates.

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 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:

title = {Subjective quality assessment of LAR coded art images},
author = {Autrusseau, Florent, and Babel, Marie},
year = {2009},
note = {}

If you don't use BibTeX, use simply:

	Florent Autrusseau, Marie Babel
Subjective quality assessment of LAR coded art images


This database was used in

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.