live_feed_rotating.py

import cv2
import time

def main():
    
    windowName = "Live Video Feed"
    cv2.namedWindow(windowName)
    cap = cv2.VideoCapture(0)
    
    if cap.isOpened():
        ret, frame = cap.read()
    else:
        ret = False
        
    rows, columns, channels = frame.shape   
    angle = 360
    scale = 0.1
#    scale = 1     
    
    while True:
        
        ret, frame = cap.read()
        
        if angle == 360:
            angle = 0

        # angle = 0 
        scale=0.5
        # if scale < 2:
        #     scale = scale + 0.1
        
        # if scale >= 2:
        #     scale = 0.1
            
        # print(scale)
        
        R = cv2.getRotationMatrix2D((columns/2, rows/2), angle, scale)
        angle-=1
        print(R)
    
        output = cv2.warpAffine(frame, R, (columns, rows))
    
    
        cv2.imshow(windowName, output)
#        angle = angle + 1
        time.sleep(0.01)
        
        if cv2.waitKey(1) == 27:
            break
        
    cv2.destroyWindow(windowName)


    cv2.destroyAllWindows()    

    cap.release()
  


if __name__ == "__main__":
    main()