import cv2
import numpy as np

img = cv2.imread('obiekty.png', cv2.IMREAD_GRAYSCALE)
kol = cv2.imread('obiekty.png', cv2.IMREAD_COLOR)

image, contours, hierarchy = cv2.findContours(img,cv2.RETR_TREE,cv2.CHAIN_APPROX_SIMPLE)
cont = cv2.drawContours(img, contours, -1, (127,127,127), 3)

maly=0
duzy=0

for contour in contours:
    area = cv2.contourArea(contour)
    if area < 1350:
        maly=maly+1
        cont1 = cv2.drawContours(kol, [contour], -1, (0,0,255), 3)
    else:
        duzy=duzy+1
        cont1 = cv2.drawContours(kol, [contour], -1, (255,0,0), 3)

print('Ilosc malych kolek:'+str(maly))
print('Ilosc duzych kolek:'+str(duzy-1))

cv2.imshow('Kontur',cont)
cv2.imshow('Output',cont1)
cv2.waitKey(0)
cv2.destroyAllWindows()