我正在使用RPi-cam-web-interface和pi相机,raspberry pi不断将图像投射到链接,我想在我的计算机上使用opencv处理该图像。
这是我使用的senddex建议的link软件。
这是一个link到sentdex的视频。
用于从中提取图像的流式URL就是它的外观,即从中提取图像的URL。
您是否尝试过在VideoCapture中传递您的网址,如下所示:
cap = cv2.VideoCapture()
cap.opne("Your_URL")
如果您可以将您的RPI链接放入VLC播放器,它应该适用于此小部件。您可以使用cv2.videoCapture()
从网址流式传输。将rtsp_stream_link
更改为您的RPI URL。
from threading import Thread
import cv2
class RTSPVideoWriterObject(object):
def __init__(self, src=0):
# Create a VideoCapture object
self.capture = cv2.VideoCapture(src)
# Default resolutions of the frame are obtained (system dependent)
self.frame_width = int(self.capture.get(3))
self.frame_height = int(self.capture.get(4))
# Set up codec and output video settings
self.codec = cv2.VideoWriter_fourcc('M','J','P','G')
self.output_video = cv2.VideoWriter('output.avi', self.codec, 30, (self.frame_width, self.frame_height))
# Start the thread to read frames from the video stream
self.thread = Thread(target=self.update, args=())
self.thread.daemon = True
self.thread.start()
def update(self):
# Read the next frame from the stream in a different thread
while True:
if self.capture.isOpened():
(self.status, self.frame) = self.capture.read()
def show_frame(self):
# Display frames in main program
if self.status:
cv2.imshow('frame', self.frame)
# Press Q on keyboard to stop recording
key = cv2.waitKey(1)
if key == ord('q'):
self.capture.release()
self.output_video.release()
cv2.destroyAllWindows()
exit(1)
def save_frame(self):
# Save obtained frame into video output file
self.output_video.write(self.frame)
if __name__ == '__main__':
rtsp_stream_link = 'your stream link!'
video_stream_widget = RTSPVideoWriterObject(rtsp_stream_link)
while True:
try:
video_stream_widget.show_frame()
#video_stream_widget.save_frame()
except AttributeError:
pass