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Subjective_Database Distorted Images and theirs subjective evaluations (DSIS)

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Categories Images / Quality Assessment
Processing Blur / JPEG & JPEG 2000 / LAR coding
Quality assessment method Double Stimulus Impairment Scale
Resolution Less than 960x540
Created the12 Feb 2015
Size115.2 Mo


10 original images were used, 235 distorted images were generated from 4 different processing:

  • JPEG ;
  • JPEG2000 ;
  • LAR coding ;
  • Blurring.

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 15 observers. Distortions for each processing and each image have been optimised in order to uniformly cover the subjective scale.

A Microsoft Excel worksheet, giving all subjective quality scores is included in the above archive.

Source publication : Please, cite the following paper(s) in your publications if you use this database in your work

Subjective quality assessment irccyn/ivc database P. Le Callet, F. Autrusseau

ReportFeb 2005 BibTex XML