Question

我正在尝试使用opencv和python访问pi摄像机，我想捕获并录制视频。它可以正常直播，但不能保存在正确的文件中。文件已损坏。我是新手，所以请为我建议正确的语法。还可以帮助我编写代码，以便可以使用cv2.capturevideo（）使视频变灰。预先感谢。

# import the necessary packages
from picamera.array import PiRGBArray
from picamera import PiCamera
import time
import cv2
import imutils
import os

# initialize the camera and grab a reference to the raw camera capture
camera = PiCamera()
camera.resolution = (640, 480)
camera.framerate = 32
rawCapture = PiRGBArray(camera, size=(640, 480))

# allow the camera to warmup
time.sleep(0.1)

cap = cv2.VideoCapture(0)
#640,480
w = 640
h = 480

out = cv2.VideoWriter('outpy.mp4',cv2.VideoWriter_fourcc('M','J','P','G'), 10, (640,480))
# capture frames from the camera
for frame in camera.capture_continuous(rawCapture, format="bgr", use_video_port=True):
    # grab the raw NumPy array representing the image, then initialize the timestamp
    # and occupied/unoccupied text

    image = frame.array
    out.write(image)

    # show the frame   

    cv2.imshow("Frame", image)

    key = cv2.waitKey(1) & 0xFF

    # clear the stream in preparation for the next frame
    rawCapture.truncate(0)

    # if the `q` key was pressed, break from the loop
    if key == ord("q"):
                cv2.destroyAllWindows()
                break

如何使用OpenCV Python在RPI中录制视频

0 个答案: