1. Wang Tiles for Image and Texture Generation
Workshop in Computer Graphics
Semester A, 2003/4

2. The goal of the project
Implement an interactive application for texture design and synthesis
Use the paper “Wang Tiles for Image and Texture Generation” [Cohen et al. 03] as the basis

3. What is texture? Texture is an image with certain properties:
Locality: small parts look alike
Stochastic: they never look exactly the same

4. Texture synthesis We often need large texture images
Want to create them from small samples
Just tiling the samples is not good enough:

5. Wang Tiles
We want non-periodic tiling
Use Wang Tiles!

6. Wang Tiles Tile the plane with Want Tiles
Adjacent edges have matching colors

7. Wang Tiles properties
If the set of tiles is rich enough there’s no periodicity
We can fill inside the tiles anything we want
Texture
Geometric primitives
Points to create Poisson distribution

8. Automatic texture synthesis
Input texture sample
Automatically generated
set of Wang tiles
Synthesized textures
using Wang tiling

9. Interactive texture design
The user fills in the Wang tiles on her own
The system displays the result of the tiling interactively

10. References
“Wang Tiles for Image and Texture Generation”, Michael F. Cohen, Jonathan Shade, Stefan Hiller, Oliver Deussen ACM SIGGRAPH 2003
References inside the above paper for more information on texture synthesis algorithms