title: Library for raster cartographic transformations. 'Unprojected' to ANY
body: <p>I have many raster (bitmap) images that I'd like to transform from unprojected lat-lon to a projected rendering. (e.g. GIF, PNG).</p>
  
  <p>I don't understand how to use PROJ.4 to render the resulting image. I'd like a library or software that can do this all automatically. GRASS GIS is large. The transforms are relatively simple transforms and of raster images only.</p>
  
  <p>Or is there basic code or an example of how I would do this? <strong>using PROJ.4 and GraphicsMagick</strong>.</p>