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Automated pebble mosaic stylization of images

Lars Doyle
Forest Anderson
Ehren Choy
David Mould
Automated pebble mosaic stylization of images. Computational Visual Media, 2019.
Journal Article

Related Projects
Image Stylization

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https://doi.org/10.1007/s41095-019-0129-0

Abstract

Digital mosaics have usually used regular tiles, simulating the historical “tessellated” mosaics. In this paper, we present a method for synthesizing pebble mosaics, a historical mosaic style in which the tiles are rounded pebbles. We address both the tiling problem, where pebbles are distributed over the image plane so as to approximate the input image content, and the problem of geometry, creating a smooth rounded shape for each pebble. We adapt SLIC, simple linear iterative clustering, to obtain elongated tiles conforming to image content, and smooth the resulting irregular shapes into shapes resembling pebble cross-sections. Then, we create an interior and exterior contour for each pebble and solve a Laplace equation over the region between them to obtain heightfield geometry. The resulting pebble set approximates the input image while presenting full geometry that can be rendered and textured for a highly detailed representation of a pebble mosaic.


BibTeX

@article{doyle2019,
  title={Automated pebble mosaic stylization of images},
  author={Doyle, Lars and Anderson, Forest and Choy, Ehren and Mould, David},
  journal={Computational Visual Media},
  volume={5},
  number={1},
  pages={33--44},
  year={2019},
  publisher={Springer}
}

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