Tracking_Color_Cam

import cv2
import numpy as np

def nothing(x):
    pass

cam = cv2.VideoCapture(0)
cv2.namedWindow("live transmission", cv2.WINDOW_AUTOSIZE)
 
cv2.namedWindow("Tracking")
cv2.createTrackbar("LH", "Tracking", 0, 255, nothing)
cv2.createTrackbar("LS", "Tracking", 0, 255, nothing)
cv2.createTrackbar("LV", "Tracking", 0, 255, nothing)
cv2.createTrackbar("UH", "Tracking", 255, 255, nothing)
cv2.createTrackbar("US", "Tracking", 255, 255, nothing)
cv2.createTrackbar("UV", "Tracking", 255, 255, nothing)

while (cam.isOpened()):

 ret, frame = cam.read()
 hsv = cv2.cvtColor(frame, cv2.COLOR_BGR2HSV)
 
 l_h = cv2.getTrackbarPos("LH", "Tracking")
 l_s = cv2.getTrackbarPos("LS", "Tracking")
 l_v = cv2.getTrackbarPos("LV", "Tracking")
 
 u_h = cv2.getTrackbarPos("UH", "Tracking")
 u_s = cv2.getTrackbarPos("US", "Tracking")
 u_v = cv2.getTrackbarPos("UV", "Tracking")
 
 l_b = np.array([l_h, l_s, l_v])
 u_b = np.array([u_h, u_s, u_v])
    
 mask = cv2.inRange(hsv, l_b, u_b) 
 res = cv2.bitwise_and(frame, frame, mask=mask)

 cv2.imshow("live transmission", frame)
 cv2.imshow("mask", mask)
 cv2.imshow("res", res)
 
 if cv2.waitKey(1) & 0xFF == ord('q'):
     break
    
cam.release()
cv2.destroyAllWindows()