HOWTO solve mazes with the magic wand tool

By at 5:14 pm Wednesday, Jun 27

You can use the "magic wand" tool in the GIMP or Photoshop to solve complex mazes:

1. Increase contrast.
2. Select the right wall of the maze using the magic wand.
3. Select > Modify > Expand 4 pixels
4. Create new layer.
5. Fill with Red.
6. Select > Modify > Contract 2 pixels.
7. Delete. Now you’ve got a line tracing the solution.
8. Manually clean up the outer edge, and connect the dots.
9. Cake!
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Cory Doctorow

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