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Volume: 32 | Article ID: art00004
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Perceptual Quality Assessment of Enhanced Images Using a Crowd-Sourcing Framework
  DOI :  10.2352/ISSN.2470-1173.2020.9.IQSP-066  Published OnlineJanuary 2020
Abstract

In this work, we present a psychophysical study, in which, we analyzed the perceptual quality of images enhanced with several types of enhancement algorithms, including color, sharpness, histogram, and contrast enhancements. To estimate and compare the qualities of enhanced images, we performed a psychophysical experiment with 35 source images, obtained from publicly available databases. More specifically, we used images from the Challenge Database, the CSIQ database, and the TID2013 database. To generate the test sequences, we used 12 different image enhancement algorithms, generating a dataset with a total of 455 images. We used a Double Stimulus Continuous Quality Scale (DSCQS) experimental methodology, with a between-subjects approach where each subject scored a subset of the total database to avoid fatigue. Given the high number of test images, we designed a crowd-sourcing interface to perform an online psychophysical experiment. This type of interface has the advantage of making it possible to collect data from many participants. We also performed an experiment in a controlled laboratory environment and compared its results with the crowd-sourcing results. Since there are very few quality enhancement databases available in the literature, this works represents a contribution to the area of image quality.

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Muhammad Irshad, Alessandro R. Silva, Sana Alamgeer, Mylène C.Q. Farias, "Perceptual Quality Assessment of Enhanced Images Using a Crowd-Sourcing Frameworkin Proc. IS&T Int’l. Symp. on Electronic Imaging: Image Quality and System Performance XVII,  2020,  pp 66-1 - 66-9,  https://doi.org/10.2352/ISSN.2470-1173.2020.9.IQSP-066

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