static int nanoAutoSegment_g = 3;
static int nanoAutoSegment_zoom = 2;

static L<Rect> nanoAutoSegment(BWImage img) {
  new AutoSegmenter as;
  int zoom = nanoAutoSegment_zoom;
  BWImage zoomedImg = bwResizeSmooth(img, img.w()*zoom, img.h()*zoom);
  as.g = nanoAutoSegment_g;
  as.go(zoomedImg);
  ret scaleRects(as.clips, 1.0/zoom);
}

static L<Rect> nanoAutoSegment(BufferedImage img) {
  ret nanoAutoSegment(new BWImage(img));
}

static L<Rect> nanoAutoSegment(RGBImage img) {
  ret nanoAutoSegment(new BWImage(img));
}

Began life as a copy of #1005842