title: Batch process anti-aliasing of transparent gif to PNG
body: <p>I have a large amount of images which at first had a black background, then the solid black color was removed leaving the image with pixelated dark-edges.</p>
  
  <p>I am looking for a way to batch process these images to either color-erase the black pixels adjacent to transparent pixels, or to smooth the edge leaving the black edges not as jagged.</p>
  
  <p>I had xnview, irfanview, and GIMP, but I cannot find a suitable method for doing this other than manually with GIMP by using the magic wand on transparent area, growing by one pixel, and color-erasing the black color.</p>
  
  <p>Any ideas? I'm talking over 800 images, so batch processing is pretty important. They are automatically generated from 3d models.</p>
  
  <p>I'll keep looking around in the mean time!</p>