lol.py

import cv2 as cv
import numpy as np

def nothing(x):
    pass

cap = cv.VideoCapture(0)
cap.set(3, 500)
cap.set(4, 500)

cv.namedWindow('cam')
cv.createTrackbar('l_h', 'cam', 0, 179, nothing)  # Hue range is 0-179
cv.createTrackbar('l_s', 'cam', 0, 255, nothing)
cv.createTrackbar('l_v', 'cam', 0, 255, nothing)
cv.createTrackbar('u_h', 'cam', 179, 179, nothing)
cv.createTrackbar('u_s', 'cam', 255, 255, nothing)
cv.createTrackbar('u_v', 'cam', 255, 255, nothing)

while True:
    ret, frame = cap.read()
    
    frame_hsv = cv.cvtColor(frame, cv.COLOR_BGR2HSV)
    lh = cv.getTrackbarPos('l_h', 'cam')
    ls = cv.getTrackbarPos('l_s', 'cam')
    lv = cv.getTrackbarPos('l_v', 'cam')
    uh = cv.getTrackbarPos('u_h', 'cam')
    us = cv.getTrackbarPos('u_s', 'cam')
    uv = cv.getTrackbarPos('u_v', 'cam')
    
    lb = np.array([lh, ls, lv])
    ub = np.array([uh, us, uv])
    
    mask = cv.inRange(frame_hsv, lb, ub)
    res = cv.bitwise_and(frame, frame, mask=mask)

    cv.imshow('cam', res)
    if cv.waitKey(1) & 0xFF == ord('q'):  # Exit the loop when 'q' is pressed
        break

cap.release()
cv.destroyAllWindows()