属性错误：模块"cv2"没有属性"cv.CV_HAAR_DO_CANNY_PRUNING"

Question

运行此代码时出现错误

if not faceFound:
if lastface == 0 or lastface == 1:
aframe = webcam.read()[1]   # there seems to be an issue in OpenCV or V4L or my webcam-
aframe = webcam.read()[1]   #   driver, I'm not sure which, but if you wait too long,
aframe = webcam.read()[1]   #   the webcam consistantly gets exactly five frames behind-
aframe = webcam.read()[1]   #   realtime. So we just grab a frame five times to ensure-
aframe = webcam.read()[1]   
fface = frontalface.detectMultiScale(aframe,1.3,4,(cv2.cv.CV_HAAR_DO_CANNY_PRUNING + cv2.cv.CV_HAAR_FIND_BIGGEST_OBJECT + cv2.cv.CV_HAAR_DO_ROUGH_SEARCH),(60,60))
if fface != ():         
lastface = 1        
for f in fface:     
faceFound = True
face = f

i got this error

AttributeError:模块'cv2'没有属性'cv。CV_HAAR_DO_CANNY_PRUNING '

我试图安装'pip install opencv-python'

Answer 1

修改如下:

fface = frontalface.detectMultiScale(aframe,1.3,4,(cv2.cv.CV_HAAR_DO_CANNY_PRUNING + cv2.cv.CV_HAAR_FIND_BIGGEST_OBJECT + cv2.cv.CV_HAAR_DO_ROUGH_SEARCH),(60,60))

:

fface = frontalface.detectMultiScale(aframe,1.3,4,(cv2.CV_HAAR_DO_CANNY_PRUNING + cv2.CV_HAAR_FIND_BIGGEST_OBJECT + cv2.CV_HAAR_DO_ROUGH_SEARCH),(60,60))