!752

!include #1005875 // Distinguisher

please include function img_upperWidthToLowerWidth.
please include function img_averageWidthDividedByHeight.
please include function img_centralPixelSet.
please include function img_leftishness.

concepts.

concept Task {
  S characters; // the 2 characters to distinguish from each other
  S font; // Font name or snippet ID
  new BitSet fontSizes;
  new RefL<VirtFunc> solutions;
}

concept VirtFunc {
  S javaCode;
}

/*
concept Discriminator {}

Discriminator > FunctionValue {
  S name; // including the "img_"
  float threshold;
  S comparator; // lt, !lt, gt, !gt, eq, ne
}
*/

sS font = "#1004569";
static float size = 10f;

static BWImage render(S text) {
  ret autoCroppedBWImage(renderText(font, size, text));
}

p {
  //showBWImage(render("01"));

  new Distinguisher d;
  for (final S f : splitAtSpace("upperWidthToLowerWidth averageWidthDividedByHeight centralPixelSet leftishness"))
    d.addFunction(f, func(BWImage img) { call(mc(), "img_" + f, img) });
  print("Got " + l(d.functions) + " functions.");
  
  int lastQuality = -1;
  for (size = 60f; size >= 10f; size--) {
    print("Rendering size " + (int) size);
    d.analyze(ll(render("0"), render("1")));
    int quality = d.quality();
    if (quality != lastQuality) {
      print("Distinguisher quality now: " + quality);
      if (quality == 0)
        break;
      lastQuality = quality;
    }
  }
  
  d.printStuff();
}

Began life as a copy of #1005878