!7

static int width = 8, y1 = 3, y2 = 4;

p-exp {
  L<RGBImageAndRect> images = markedFaces_scaledToWidth(width);

  Recognizer recognizer = new {
    public Rect get(RGBImage img) {
      print(f2s(img.file));
      RGBImage img2 = rgbClipLineRange(img, y1, y2);
      float[] f = rgbImageColumnBrightnesses(img2);
      printStruct(f);
      int x = indexOfSmallestFloat(f);
      ret rectFromPoints(x-1, y1, x+1, y2);
    }
  };
  
  for (RGBImageAndRect i : images)
    print(i.rect + " - " + recognizer.get(i.image));
}

abstract sclass Recognizer extends F1<RGBImage, Rect> {}