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Sensitivity of Tone Mapped Image Quality Metrics to Perceptually Hardly Noticeable Differences (CROSBI ID 647063)

Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija

Banić, Nikola ; Lončarić, Sven Sensitivity of Tone Mapped Image Quality Metrics to Perceptually Hardly Noticeable Differences // Proceedings of The Fifth Croatian Computer Vision Workshop (CCVW 2016). 2016. str. 15-18

Podaci o odgovornosti

Banić, Nikola ; Lončarić, Sven

engleski

Sensitivity of Tone Mapped Image Quality Metrics to Perceptually Hardly Noticeable Differences

As high dynamic range images are being used more widely, the need for good tone mapping operators (TMOs) i.e. methods for their conversion to low dynamic range images rises as well. In evaluation of results of TMOs objective image quality metrics are often used for practical reasons. Since these metrics only approximate perceptual evaluation, they are sometimes too sensitive to perceptually unimportant details. In this paper such sensitivities of three recent tone mapped image quality metrics are compared: TMQI, TMQI-II, and FSITM. These metrics have been chosen because they are the most appropriate objective quality metrics for the problem of tone mapping. The comparison is performed by using specifically designed tone mapped images to check the measures' susceptibility to perceptually unnoticeable changes in brightness of the resulting image. It is shown that while values of TMQI and FSITM are only slightly affected by such changes, the recent TMQI-II can obtain significantly different values, which brings into question its ability perform a fair TMO comparison. The results are presented and discussed.

high dynamic range ; objective image quality assessment ; FSITM ; low dynamic range ; TMQI ; TMQI-II ; tone mapping

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Podaci o prilogu

15-18.

2016.

objavljeno

Podaci o matičnoj publikaciji

Proceedings of The Fifth Croatian Computer Vision Workshop (CCVW 2016)

Podaci o skupu

Fifth Croatian Computer Vision Workshop

poster

11.10.2016-11.10.2016

Osijek, Hrvatska

Povezanost rada

Računarstvo