Stone Weathering in a Photograph
Article first published online: 19 JUL 2011
© 2011 The Author(s) Computer Graphics Forum © 2011 The Eurographics Association and Blackwell Publishing Ltd.
Computer Graphics Forum
Volume 30, Issue 4, pages 1189–1196, June 2011
How to Cite
Xue, S., Dorsey, J. and Rushmeier, H. (2011), Stone Weathering in a Photograph. Computer Graphics Forum, 30: 1189–1196. doi: 10.1111/j.1467-8659.2011.01977.x
- Issue published online: 19 JUL 2011
- Article first published online: 19 JUL 2011
- I.3.3 [Computer Graphics]: Picture/Image Generation—Display Algorithm;
- I.4.10 [Image Processing and Computer Vision]: Image Representation—Statistical
The appearance of weathering effects on stone is important for creating outdoor scenes in computer graphics. To achieve them, previous research has built upon physical simulation, which, while yielding a degree of realism, is computationally expensive and inapplicable to the situation when the object geometry is unknown. Also, physical simulation requires specific knowledge of the stone properties and environmental processes. In this paper, we present a simple visual simulation pipeline for creating weathering effects on stone within a single image. Two primary effects of stone weathering, i.e., smoothing and roughening, are considered. In addition, erosion on the object silhouette is treated. These challenging effects involve significant geometry changes, which are intractable for previous image-based editing techniques. The effectiveness of our technique is illustrated on a variety of scenes and types of stone. While it can be fully automatic, it also allows easy user interaction.