Resynthesizer is a Gimp plug-in for texture synthesis. Given a sample
of a texture, it can create more of that texture. This has a surprising
number of uses:

  * Creating more of a texture
  * Removing objects from images
  * Creating themed images

The following menu items are provided:

Edit > Fill with pattern seamless...
Filters > Enhance > Enlarge & sharpen...
Filters > Enhance > Heal selection...
Filters > Enhance > Heal transparency...
Filters > Enhance > Sharpen by synthesis...
Filters > Enhance > Uncrop...
Filters > Map > Resynthesize...
Filters > Map > Style...
Filters > Render > Texture...