diff --git a/numpy/roc/image2.png b/numpy/roc/image2.png index f603b02..3d6fdf7 100644 Binary files a/numpy/roc/image2.png and b/numpy/roc/image2.png differ diff --git a/numpy/roc/image3.png b/numpy/roc/image3.png index b8f0ffb..3a5d0d9 100644 Binary files a/numpy/roc/image3.png and b/numpy/roc/image3.png differ