The (IRCCyN/IVC) Image Quality Database available from the Institut de Recherche en Communications at Cybernétique de Nantes includes JPEG, JPEG2000, and Locally Adaptive Resolution (LAR) coding and blurred images. These algorithms have very different types of distortion. Subjective evaluations were made using a DSIS (Double Stimulus Impairment Scale method with 5 categories and 15 observers. 10 original images were used.
ZIP archive (~116MB), no password. Link: http://www2.irccyn.ec-nantes.fr/ivcdb/IVC_SubQualityDB.zip Qualinet Databases Mirror: Link: ftpes://multimediatech.cz/IRCCyN_IVC/IRCCyN_IVC_SubQuality Username: dbq-mirrors Password: kucykepe
References and Citation
LA06: Patrick Le Callet, Florent Autrusseau, Subjective quality assessment IRCCyN/IVC database, http://www.irccyn.ec-nantes.fr/ivcdb/.
NLA06: Alexandre Ninassi, Patrick Le Callet, Florent Autrusseau, "Pseudo No Reference image quality metric using perceptual data hiding", in SPIE Human Vision and Electronic Imaging, vol. 6057-08, San Jose, CA, USA, January 2006.