openCV16-hsv.py

import cv2
print(cv2.__version__)
import numpy as np
def nothing(x):
    pass
cv2.namedWindow('Trackbars')
cv2.moveWindow('Trackbars',1320,0)

cv2.createTrackbar('hueLower', 'Trackbars',50,179,nothing)
cv2.createTrackbar('hueHigher', 'Trackbars',100,179,nothing)
cv2.createTrackbar('satLower', 'Trackbars',100,255,nothing)
cv2.createTrackbar('satHigher', 'Trackbars',255,255,nothing)
cv2.createTrackbar('valLower', 'Trackbars',100,255,nothing)
cv2.createTrackbar('valHigher', 'Trackbars',255,255,nothing)


dispW=640
dispH=480
flip=2
camSet='nvarguscamerasrc !  video/x-raw(memory:NVMM), width=3264, height=2464, format=NV12, framerate=21/1 ! nvvidconv flip-method='+str(flip)+' ! video/x-raw, width='+str(dispW)+', height='+str(dispH)+', format=BGRx ! videoconvert ! video/x-raw, format=BGR ! appsink'
cam=cv2.VideoCapture(camSet)
#cam2=cv2.VideoCapture(camSet2)
while True:
    #ret, frame=cam.read()
 #  ret, frame2=cam2.read()
    frame=cv2.imread('smarties.png')
    cv2.imshow('nanoCam',frame)
    cv2.moveWindow('nanoCam',0,0)

    hsv=cv2.cvtColor(frame,cv2.COLOR_BGR2HSV)

    hueLow=cv2.getTrackbarPos('hueLower','Trackbars')
    hueHigh=cv2.getTrackbarPos('hueHigher','Trackbars')
    satLow=cv2.getTrackbarPos('satLower','Trackbars')
    satHigh=cv2.getTrackbarPos('satHigher','Trackbars')
    valLow=cv2.getTrackbarPos('valLower','Trackbars')
    valHigh=cv2.getTrackbarPos('valHigher','Trackbars')

    l_b=np.array([hueLow,satLow,valLow])
    u_b=np.array([hueHigh,satHigh,valHigh])

    print('lb',l_b)
    print('ub',u_b)


    FGMask=cv2.inRange(hsv,l_b,u_b)
    cv2.imshow('FGMask',FGMask)
    cv2.moveWindow('FGMask',0,410)
    
    FG=cv2.bitwise_and(frame,frame,mask=FGMask)
    cv2.imshow('FG',FG)
    cv2.moveWindow('FG',480,0)
  #  cv2.imshow('grayVideo',frame2)
   # cv2.moveWindow('grayVideo')
    if cv2.waitKey(1)==ord('q'):
        break

cam.release()
cv2.destroyAllWindows