Computer Vision

Computer Vision is an interdisciplinary field that deals with how computers can be made for gaining high-level understanding from digital images or videos. From the perspective of engineering, it seeks to automate tasks that the human visual system can do. Wikipedia

• 1

• https://github.com/shantnu/FaceDetect

• https://media.readthedocs.org/pdf/opencv-python-tutroals/latest/opencv-python-tutroals.pdf

• http://pythonexample.com/code/opencv-videocapture-gstreamer/

• http://wiki.oz9aec.net/index.php/Gstreamer_cheat_sheet

• https://github.com/MDHSRobotics/TeamWiki/wiki/Gstreamer--Install-and-UDP-stream-instructions

user@workstation:~/Bitol/VirtualDroneSolution/UseCases/XunanKab/Tasks$ gst-launch-1.0 -v v4l2src ! video/x-raw,format=YUY2,width=640,height=480 ! jpegenc ! rtpjpegpay ! udpsink host=127.0.0.1 port=5000
user@workstation:~/Bitol/VirtualDroneSolution/UseCases/XunanKab/Tasks$ gst-launch-1.0 -v udpsrc port=5000 ! application/x-rtp, media=video, clock-rate=90000, encoding-name=JPEG, payload=26 ! rtpjpegdepay ! jpegdec ! xvimagesink sync=0

import cv2

cap = cv2.VideoCapture(0)

framerate = 25.0

#out = cv2.VideoWriter('appsrc ! videoconvert ! '
#                      'x264enc noise-reduction=10000 speed-preset=ultrafast tune=zerolatency ! '
#                      'rtph264pay config-interval=1 pt=96 !'
#                      'tcpserversink host=192.168.1.27 port=5000 sync=false',
#                      0, framerate, (640, 480))

out = cv2.VideoWriter('appsrc ! videoconvert ! video/x-raw,format=YUY2,width=640,height=480 ! jpegenc ! rtpjpegpay ! '
                      'udpsink host=172.17.0.1 port=5000',
                      0, framerate, (640, 480))

while cap.isOpened():
    ret, frame = cap.read()
    if ret:

        out.write(frame)

        if cv2.waitKey(1) & 0xFF == ord('q'):
            break
    else:
        break

# Release everything if job is finished
cap.release()
out.release()
root@c12f27a31092:/Xiaomin# 
[2] 0:docker*Z