在使用mediapipe库之前需要先导入cv2库,否则会提示“name 'cv2' is not defined”的错误。 示例代码:
import cv2
import mediapipe as mp
cap = cv2.VideoCapture(0)
with mp.solutions.hands.Hands() as hands:
while True:
success, image = cap.read()
if not success:
print("Ignoring empty camera frame.")
continue
image = cv2.cvtColor(cv2.flip(image, 1), cv2.COLOR_BGR2RGB)
image.flags.writeable = False
results = hands.process(image)
image.flags.writeable = True
image = cv2.cvtColor(image, cv2.COLOR_RGB2BGR)
cv2.imshow('MediaPipe Hands', image)
if cv2.waitKey(5) & 0xFF == 27:
break
cap.release()
cv2.destroyAllWindows()
在以上代码中,先导入了cv2库,再进行mediapipe库的使用,可以避免“cv2 not work after install mediapipe library”的问题。