无法访问python open中的GetCaptureProperty或任何类似函数

Question

我在opencv2.3和2.4中尝试了很多组合来获得视频的帧数，但是没有任何结果。似乎根本不存在。在

stream = cv.VideoCapture(avsfilename) #stream.isOpened() returns True, everything's ok
framecount = cv.GetCaptureProperty(stream, CV_CAP_PROP_FRAME_COUNT) #no
framecount = cv.GetCaptureProperty(stream, cv.CV_CAP_PROP_FRAME_COUNT) #no
framecount = stream.get(cv.CV_CAP_PROP_FRAME_COUNT) #no
framecount = stream.get(CV_CAP_PROP_FRAME_COUNT) #no

“module”对象没有属性“CV”“CAP”“PROP”“FRAME”“COUNT”

有人通过类似的考试吗？在

Answer 1

您必须对您的cv2和{}导入小心一点，这两种方法都可以：

import cv2
import cv2.cv as cv

#Using cv2:
stream = cv2.VideoCapture(filename)
print stream.get(cv.CV_CAP_PROP_FRAME_COUNT)

#using cv:
stream = cv.CaptureFromFile(filename)
print cv.GetCaptureProperty(stream, cv.CV_CAP_PROP_FRAME_COUNT)