Face_recognition: face_encodings return empty list
- face_recognition version:1.2.2
- Python version:2.7.12
- Operating System:Ubuntu 16.04.4 LTS
Description
I have an image dataset and half of them couldn't be encoded using face_encodings() function.
This is one of them:
Firstly, I used load_image_file() and I got a numpy array with shape (182,182,3). There was no problem, but when I use the numpy array I've got with face_encodings(), it return [ ].
hoangdzung
All 2 comments
That means it didn't find any faces in the image to encode. By default, it tries to locate a face in the image before it encodes it. Since your image is already cropped to the face area, you can pass in known_face_locations=[(0, width, height, 0]] to tell it where the face is.
ageitgey
on 10 May 2018
👍6
That seems to work, thank you @ageitgey
rizasif
on 23 May 2018
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Most helpful comment
That means it didn't find any faces in the image to encode. By default, it tries to locate a face in the image before it encodes it. Since your image is already cropped to the face area, you can pass in
known_face_locations=[(0, width, height, 0]]to tell it where the face is.