Perceptually Linear Parameter Variations
| dc.contributor.author | Lindow, Norbert | en_US |
| dc.contributor.author | Baum, Daniel | en_US |
| dc.contributor.author | Hege, Hans-Christian | en_US |
| dc.contributor.editor | P. Cignoni and T. Ertl | en_US |
| dc.date.accessioned | 2015-02-28T06:54:52Z | |
| dc.date.available | 2015-02-28T06:54:52Z | |
| dc.date.issued | 2012 | en_US |
| dc.description.abstract | Most 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.description.seriesinformation | Computer Graphics Forum | en_US |
| dc.description.volume | 31 | |
| dc.identifier.doi | 10.1111/j.1467-8659.2012.03054.x | |
| dc.identifier.issn | 1467-8659 | en_US |
| dc.identifier.uri | https://doi.org/10.1111/j.1467-8659.2012.03054.x | en_US |
| dc.publisher | The Eurographics Association and John Wiley and Sons Ltd. | en_US |
| dc.title | Perceptually Linear Parameter Variations | en_US |