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dc.contributor.authorLindow, Norberten_US
dc.contributor.authorBaum, Danielen_US
dc.contributor.authorHege, Hans-Christianen_US
dc.contributor.editorP. Cignoni and T. Ertlen_US
dc.date.accessioned2015-02-28T06:54:52Z
dc.date.available2015-02-28T06:54:52Z
dc.date.issued2012en_US
dc.identifier.issn1467-8659en_US
dc.identifier.urihttp://dx.doi.org/10.1111/j.1467-8659.2012.03054.xen_US
dc.description.abstractMost visual analysis tasks require interactive adjustment of parameter values. In general, a linear variation of a parameter, using for instance a GUI slider, changes the visual result in a perceptually non-linear way. This hampers interactive adjustment of parameters, especially in regions where rapid perceptual changes occur. Selecting a good parameter value therefore remains a time-consuming and often difficult task. We propose a novel technique to build a non-linear function that maps a new parameter to the original parameter. By prefixing this function to the original parameter and using the new parameter as input, a linear relationship between input and visual feedback is obtained. To construct the non-linear function, we measure the variation of the visual result using image metrics. Given a suitable perceptual image metric, perceptually linear image variations are achieved. We demonstrate the practical utility of our approach by implementing two common image metrics, a perceptual and a non-perceptual one, and by applying the method to a few visual analysis tasks.en_US
dc.publisherThe Eurographics Association and John Wiley and Sons Ltd.en_US
dc.titlePerceptually Linear Parameter Variationsen_US
dc.description.seriesinformationComputer Graphics Forumen_US


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