static S uploadJPEGToImageServer(S path) {
  ret uploadJPEGToImageServer(newFile(path));
}

static S uploadJPEGToImageServer(File f) {
  ret uploadJPEGToImageServer(loadImage2(f), fileName(f));
}

static S uploadJPEGToImageServer(BufferedImage img, S name) {
  byte[] jpeg = toJPEG(img);
  S md5 = md5OfRGBImage(new RGBImage(imageFromByteArray(jpeg))); // take artifacts into account
  long id = imageServerCheckMD5(md5);
  if (id == 0)
    ret uploadToImageServer_new_jpg(jpeg, name);
  else
    ret imageServerURL() + "raw/" + id;
}

static S uploadJPEGToImageServer(S name, BufferedImage img) {
  ret uploadJPEGToImageServer(img, name);
}