objectDetect.py

import cv2 as cv
import numpy as np

def nothing(c):
    pass

cap=cv.VideoCapture(0)

cv.namedWindow('Tracking')
cv.createTrackbar("LH",'Tracking',0,255,nothing)
cv.createTrackbar("UH",'Tracking',255,255,nothing)
cv.createTrackbar("LS",'Tracking',0,255,nothing)
cv.createTrackbar("US",'Tracking',255,255,nothing)
cv.createTrackbar("LV",'Tracking',0,255,nothing)
cv.createTrackbar("UV",'Tracking',255,255,nothing)

while True:
    #frame=cv.imread('smarties.png')
    _, frame=cap.read()
    hsv=cv.cvtColor(frame,cv.COLOR_BGR2HSV)

    l_h=cv.getTrackbarPos("LH",'Tracking')
    u_h=cv.getTrackbarPos("UH",'Tracking')
    l_s=cv.getTrackbarPos("LS",'Tracking')
    u_s=cv.getTrackbarPos("US",'Tracking')
    l_v=cv.getTrackbarPos("LV",'Tracking')
    u_v=cv.getTrackbarPos("UV",'Tracking')

    #l_b=np.array([110,50,50])
    #u_b=np.array([130,255,255])

    l_b=np.array([l_h,l_s,l_v])
    u_b=np.array([u_h,u_s,u_v])

    mask=cv.inRange(hsv,l_b,u_b)
    res=cv.bitwise_and(frame,frame,mask=mask)

    cv.imshow("frame",frame)
    cv.imshow('res',res)
    cv.imshow('mask',mask)

    key=cv.waitKey(1)
    if key==27:
        break

cap.release()
cv.destroyAllWindows()