The purpose of this page is to make available one subjective quality assessment from IRCCyN/IVC (Now LS2N/IPI). The experiments were conducted in our lab in normalized conditions.
Content
8 original color images were used, 200 distorted images were generated
from 5 different encryption techniques with 5 parameters.
Subjective evaluations were made at viewing distance of 6 times the screen height using a "Pair Comparison" protocol method with 5 categories and 21 observers. Distortions for each processing and each image have been optimised in order to uniformly cover the subjective scale.
Download
Download the IVC-SelectEncrypt
database (47 MB zip file)
A Microsoft Excel spreadsheet, giving all subjective quality scores is
included in the above archive.
How to cite the IVC-SelectEncrypt database
If you use BibTeX, here are the citations:
@misc{ivcselectencrypt,
title = {Subjective quality assessment of selective encryption techniques},
author = {Autrusseau, Florent, and St\"utz, Thomas, and Pankajakshan, Vinod},
year = {2010},
note = {http://www.polytech.univ-nantes.fr/autrusseau-f/Databases/SelectiveEncryption/s/}
}
@inproceedings{ACM2010,
author = {Thomas Stütz and Vinod Pankajakshan and Florent Autrusseau and Andreas Uhl and Heinz Hofbauer},
title = {Subjective and Objective Quality Assessment of Transparently Encrypted JPEG2000 Images},
booktitle = {12th ACM Workshop on Multimedia and Security, ACM-MMSEC'2010},
year = {2010},
pages = {247-252},
url = {http://www.polytech.univ-nantes.fr/autrusseau-f/Papers/ACMmmsec31s-stutz.pdf}
}
If you don't use BibTeX, use simply:
Florent Autrusseau, Thomas Stuetz and Vinod Pankajakshan
Subjective quality assessment of selective encryption techniques
http://www.polytech.univ-nantes.fr/autrusseau-f/Databases/SelectiveEncryption/
T. Stuetz , V. Pankajakshan, F. Autrusseau, A. Uhl, H. Hofbauer,
"Subjective and Objective Quality Assessment of Transparently Encrypted JPEG2000 Images",
12th ACM Workshop on Multimedia and Security, ACM-MMSEC'2010,
pp. 247-252, Rome, Italy, Sept. 9-10 2010.
The source code for running the subjective experiment can be found here: