Accept an annotator in FaceCrop

related to #26 (closed)

bob/bio/face/annotator/__init__.py

@@ -38,9 +38,17 @@ def min_face_size_validator(annotations, min_face_size=(32, 32)):
     """
     if not annotations:
         return False
-    bbx = bob.ip.facedetect.bounding_box_from_annotation(
-        source='direct', **annotations)
-    if bbx.size < min_face_size:
+    for source in ('direct', 'eyes', None):
+        try:
+            bbx = bob.ip.facedetect.bounding_box_from_annotation(
+                source=source, **annotations)
+            break
+        except Exception:
+            if source is None:
+                raise
+            else:
+                pass
+    if bbx.size[0] < min_face_size[0] or bbx.size[1] < min_face_size[1]:
         return False
     return True