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Selective_Encryption Subjective evaluation (Pair Comparison) of 5 different encryption techniques

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Categories Images / Quality Assessment / Selective Encryption
Quality assessment method Pair Comparison
Resolution Less than 960x540
Created the12 Feb 2015
Size70.6 Mo


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.

The source code for running the subjective experiment can be found here: and a brief explanation on the protocol is right there.

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

Subjective quality assessment of selective encryption techniques F. Autrusseau, T. Stutz, V. Pankajakshan

ReportFeb 2010 BibTex XML