move annotation normalization to bob.bio.video

bob/bio/face/annotator/__init__.py

 from .Base import Base
-from bob.ip.facedetect import bounding_box_from_annotation
 
 
 def bounding_box_to_annotations(bbx):
@@ -7,63 +6,3 @@ def bounding_box_to_annotations(bbx):
     landmarks['topleft'] = bbx.topleft_f
     landmarks['bottomright'] = bbx.bottomright_f
     return landmarks
-
-
-def normalize_annotations(annotations, validator, max_age=-1):
-    """Normalizes the annotations of one video sequence. It fills the
-    annotations for frames from previous ones if the annotation for the current
-    frame is not valid.
-
-    Parameters
-    ----------
-    annotations : dict
-        A dict of dict where the keys to the first dict are frame indices as
-        strings (starting from 0). The inside dicts contain annotations for
-        that frame.
-    validator : callable
-        Takes a dict (annotations) and returns True if the annotations are
-        valid. This can be check based on minimal face size for example.
-    max_age : :obj:`int`, optional
-        An integer indicating for a how many frames a detected face is valid if
-        no detection occurs after such frame. A value of -1 == forever
-
-    Yields
-    ------
-    dict
-        The corrected annotations of frames.
-    """
-    # the annotations for the current frame
-    current = {}
-    age = 0
-
-    for k, annot in annotations.items():
-        if validator(annot):
-            current = annot
-            age = 0
-        elif max_age < 0 or age < max_age:
-            age += 1
-        else:  # no detections and age is larger than maximum allowed
-            current = {}
-
-        yield current
-
-
-def min_face_size_validator(annotations, min_face_size=32):
-    """Validates annotations based on face's minimal size.
-
-    Parameters
-    ----------
-    annotations : dict
-        The annotations in dictionary format.
-    min_face_size : int, optional
-        The minimal size of a face.
-
-    Returns
-    -------
-    bool
-        True, if the face is large enough.
-    """
-    bbx = bounding_box_from_annotation(**annotations)
-    if bbx.size < 32:
-        return False
-    return True