I'm looking for good suggestions to vectorise the following image, using one of the standard available software toolkits, e.g. Illustrator or Gimp.
I was approaching the vectorisation of this image with the idea that it should be straight-forward, given that it only consists of straight lines and fillings. Nevertheless, Illustrator's standard trace function smoothes everything and gives me curved lines and fillings. Using "Object->Create Object Mosaic" is not an alternative, as the thin lines between the squares won't be reproduced unless I set the Mosaic size to 1 pixel, which takes forever to compute. I need an exact representation of the image with a decent file size.