Texture Optimization

Implementation of "Texture Optimization for Example-based Synthesis" by Vivek Kwatra et al.

The output images are generated on 50 iterations.

Try it

You can generate a single image:

cmake . && make && ./DisplayImage input/ztext.bmp

Or all of them

./test.sh

Not done

• the authors use a memory efficient kd-tree: they only record the position of the source and recover more info as needed.
• we should compute the kdtree only once per scale level, but I ran into odd segfaults errors as I tried...
• we don't compute origin patches for pixels on the edges. Nothing being done, it's very messy... We should get rid of those edge issues with some padding.
• we should remove the OpenNL dependency: our energy minimization consists only of weighted averages...

Comparaison with original paper

• This implementation searches for similar patches using color information, not just intensity information.
• Performance needs some tuning: long-distance repetitive structures are not as nicely captured as in the paper. Tuning the initial scale should be enough to fix this.
• Flow-controled synthesis is not covered.

Dependencies

• cmake
• opencv