Python Google FaceAPI 顔座標を一つずつ取得

GoogleのFaceAPIについて

https://cloud.google.com/vision/docs/detecting-faces?hl=ja#vision_face_detection_gcs-python
に基づいて顔検出をしています。
実行自体はできたのですが、検出した顔の座標を一つずつ取り出したいです。
少しいじっては見たものの、うまくいきません。お助けください。

python
1def detect_faces_uri(uri):
2    """Detects faces in the file located in Google Cloud Storage or the web."""
3    from google.cloud import vision
4    client = vision.ImageAnnotatorClient()
5    image = vision.types.Image()
6    image.source.image_uri = uri
7
8    response = client.face_detection(image=image)
9    faces = response.face_annotations
10
11    # Names of likelihood from google.cloud.vision.enums
12    likelihood_name = ('UNKNOWN', 'VERY_UNLIKELY', 'UNLIKELY', 'POSSIBLE',
13                       'LIKELY', 'VERY_LIKELY')
14    print('Faces:')
15
16    for face in faces:
17        print('anger: {}'.format(likelihood_name[face.anger_likelihood]))
18        print('joy: {}'.format(likelihood_name[face.joy_likelihood]))
19        print('surprise: {}'.format(likelihood_name[face.surprise_likelihood]))
20
21        vertices = (['({},{})'.format(vertex.x, vertex.y)
22                    for vertex in face.bounding_poly.vertices])
23
24        print('face bounds: {}'.format(','.join(vertices)))
25
26    if response.error.message:
27        raise Exception(
28            '{}\nFor more info on error messages, check: '
29            'https://cloud.google.com/apis/design/errors'.format(
30                response.error.message))

行動規範の内容に同意します

回答1件

自己解決

python
1  for face in faces:
2        print('anger: {}'.format(likelihood_name[face.anger_likelihood]))
3        print('joy: {}'.format(likelihood_name[face.joy_likelihood]))
4        print('surprise: {}'.format(likelihood_name[face.surprise_likelihood]))
5        
6        for i, vertex in enumerate(face.bounding_poly.vertices,0):
7            if i == 0 :
8                global ver1x
9                global ver1y
10                ver1x = vertex.x #左上のx座標
11                ver1y = vertex.y #左上のy座標
12            
13            if i == 2 :
14                global ver2x
15                global ver2y
16                ver2x = vertex.x #右下のx座標
17                ver2y = vertex.y #右下のy座標
18