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optional MtCnn batching (does not work in python3.8)

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galthran-wq 2025-02-17 12:08:32 +00:00
parent 7e59cdf05d
commit 0f67ddaf9f
1 changed files with 26 additions and 1 deletions
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27
deepface/models/face_detection/MtCnn.py
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@ -1,4 +1,5 @@
# built-in dependencies
import logging
from typing import List, Union
# 3rd party dependencies
@ -8,6 +9,8 @@ from mtcnn import MTCNN
# project dependencies
from deepface.models.Detector import Detector, FacialAreaRegion
logger = logging.getLogger(__name__)
# pylint: disable=too-few-public-methods
class MtCnnClient(Detector):
"""
@ -16,6 +19,7 @@ class MtCnnClient(Detector):
def __init__(self):
self.model = MTCNN()
self.supports_batch_detection = self._supports_batch_detection()
def detect_faces(
self,
@ -42,7 +46,10 @@ class MtCnnClient(Detector):
# mtcnn expects RGB but OpenCV read BGR
# img_rgb = cv2.cvtColor(img, cv2.COLOR_BGR2RGB)
img_rgb = [img[:, :, ::-1] for img in img]
detections = self.model.detect_faces(img_rgb)
if self.supports_batch_detection:
detections = self.model.detect_faces(img_rgb)
else:
detections = [self.model.detect_faces(single_img) for single_img in img_rgb]
for image_detections in detections:
image_resp = []
@ -72,3 +79,21 @@ class MtCnnClient(Detector):
if len(resp) == 1:
return resp[0]
return resp
def _supports_batch_detection(self) -> bool:
import mtcnn
try:
mtcnn_version = mtcnn.__version__
except AttributeError:
try:
import mtcnn.metadata
mtcnn_version = mtcnn.metadata.__version__
except AttributeError:
logger.warning("Failed to determine mtcnn version")
logger.warning("Fallback to single image detection")
return False
supports_batch_detection = mtcnn_version >= "1.0.0"
if not supports_batch_detection:
logger.warning("MtCnn version is less than 1.0.0, batch detection is not supported")
logger.warning("Fallback to single image detection")
return supports_batch_detection