Image Processing Blog

How to Read Video İn Opencv Python The following code is used to read video in OpenCV python. The process of reading video in OpenCV is very similar to reading images. The video is a series of images. All frames in a video sequence must be looped over and then rendered one frame at a time. import cv2 capture = cv2.VideoCapture( 'video.mp4' ) while (capture.isOpened()): r , f = capture.read() gray = cv2.cvtColor(f , cv2.COLOR_BGR2GRAY) cv2.imshow( 'video' , gray) if cv2.waitKey( 1 ) & 0xFF == ord ( 'q' ): break capture.release() cv2.destroyAllWindows()

Capture Image From Camera Using OpenCV, you can capture video from your computer's webcam and use these videos for many purposes. OpenCV provides a very simple interface for video capture process. It takes preparation to capture video. To capture a video, you must create a VideoCapture object. Its argument may be the device index. capture = cv2.VideoCapture( 0 )   The device index is just the number that determines which camera to use. Normally 0 is selected if a camera will be connected. You can select the second camera by giving a value of 1. After that, you can shoot frame by frame. ret , frame = capture.read()   cap.read () returns a bool value. If the frame reads correctly, the value will be True. With the Cap.isOpened () method, you can check whether the video capture process is started. If it's true, it's okay. If not, you need to open it using cap.open (). The codes are all as follows: import cv2 capture = cv2.VideoCapture( 0 ) while ( True ):   #...