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FaceDetectionFastDisplayPFS.py
# fast face detection sample with FPS in console
import face_recognition
import cv2
import time
video_capture = cv2.VideoCapture(0)
while True:
start_time = time.time()
ret, frame = video_capture.read()
fast_frame = cv2.resize(frame, (0, 0), fx=0.25, fy=0.25)
rgb_frame = fast_frame[:, :, ::-1]
face_locations = face_recognition.face_locations(rgb_frame)
for top, right, bottom, left in face_locations:
top *= 4
right *= 4
bottom *= 4
left *= 4
cv2.rectangle(frame, (left, top), (right, bottom), (0, 0, 255), 2)
cv2.imshow('Video', frame)
print("FPS: ", 1.0 / (time.time() - start_time)) # FPS = 1 / time to process loop
if cv2.waitKey(1) & 0xFF == ord('q'):
break
video_capture.release()
cv2.destroyAllWindows()
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