Есть код

from logging import captureWarnings
import cv2 as cv
def nothing(x):
 pass
frame = cv.imread('D:/Python/vs-code/opencv/green.jpg')
frame = cv.resize(frame, (512, 512))
cv.namedWindow('result')
cv.createTrackbar('minB', 'result', 0, 255, nothing)
cv.createTrackbar('minG', 'result', 0, 255, nothing)
cv.createTrackbar('minR', 'result', 0, 255, nothing)
cv.createTrackbar('maxB', 'result', 0, 255, nothing)
cv.createTrackbar('maxG', 'result', 0, 255, nothing)
cv.createTrackbar('maxR', 'result', 0, 255, nothing)
while (True):
 hsv=cv.cvtColor(frame, cv.COLOR_BGR2HSV)
 cv.imshow('hsv', hsv)
 minB = cv.getTrackbarPos('minB', 'result')
 minG = cv.getTrackbarPos('minG', 'result')
 minR = cv.getTrackbarPos('minR', 'result')
 maxB = cv.getTrackbarPos('maxB', 'result')
 maxG = cv.getTrackbarPos('maxG', 'result')
 maxR = cv.getTrackbarPos('maxR', 'result')
 hsv=cv.blur(hsv,(5,5))
 cv.imshow('blur', hsv)
 cv.imshow('Frame', frame)
 mask=cv.inRange(hsv,(minB,minG,minR),(maxB,maxG,maxR))
 cv.imshow('okno',mask)
 result = cv.bitwise_and(frame, frame, mask=mask)
 cv.imshow('result', result)
 if cv.waitKey(1)==ord('q'):
  break
captureWarnings.release()
cv.destroyALLwindows()