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Volume models often show high complexity. Local details and overall shape may sometimes be difficult to perceive. Unsharp masking techniques improve the perception of those small features by increasing the local contrast. In this paper we present a simple and fast method for feature enhancement based on 3D mipmaps. In contrast to other
approaches, in addition to increasing luminance on the feature details, we also darken the valleys of the volume thus increasing local contrast and making neighboring details more visible. Our approach is fast and simple, with small memory requirements thanks to the use of 3D mipmaps. We also propose a color selection strategy, based on harmonic colors, that further enhances the salient features without abrupt or uncomfortable color changes.
CitationDíaz, J.; Marco, J.; Vazquez, P. Cost-effective feature enhancement for volume datasets. A: Vision, Modeling, and visualization. "15th International Workshop on Vision, Modeling and Visualization". Siegen: 2010, p. 187-194.
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