Update mmod2.py

mmod2.py

@@ -138,5 +138,5 @@ class Mmod2(datasets.GeneratorBasedBuilder):
         for ix in range(px, next_px, x_direction):
           for iy in range(py, next_py, y_direction):
             if ix < img.size[0] and iy < img.size[1]:
-              pixels[ix, iy] = _LABEL_COLORS[point_index // 3]
+              pixels[ix, iy] = _LABEL_COLORS[0]
     return img