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Broken_Arrows Subjective test (DSIS) of "Broken Arrows" watermarking algorithm

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Categories Images / Quality Assessment / Watermarking
Quality assessment method Double Stimulus Impairment Scale
Resolution Less than 960x540
Created the12 Feb 2015


10 original grayscale images were used (5 natural images: BOWS2 DB and 5 art images: EROS DB), 120 distorted images were generated with 6 different embedding strength, and either with or without CSF weighting function.

These "Broken Arrows" watermarking algorithm was used (see the "bows2" contest). 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 17 observers. Distortions for each processing and each image have been optimised in order to uniformly cover the subjective scale.

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

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.

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

Subjective quality assessment of the broken arrows watermarking technique F. Autrusseau, P. Bas

ReportFeb 2009 BibTex XML