python opencv的视频与图像操作

python opencv的视频与图像操作

import cv2 as cv

VideoCaptrue=cv.VideoCapture()
#get the fps and size
fps = VideoCapture.get(CV_CAP_PROP_FPS )
size = (int(VideoCapture.get(CV_CAP_PROP_FRAME_WIDTH)),
int(VideoCapture.get(CV_CAP_PROP_FRAME_HEIGHT)))

while(VideoCapture.isOpened()):
ret, frame = VideoCapture.read()# frame为每帧图片

blur = cv2.medianBlur(frame,5)# 中值滤波

cap = cv2.VideoCapture('output.avi')

while(cap.isOpened()):
ret, frame = cap.read()
if ret == True:
gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
cv2.imshow('image', gray)
k = cv2.waitKey(20)
if (k & 0xff == ord('q')):
break
else:
break

cap.release()
cv2.destroyAllWindows()