import numpy as np 
import cv2

img = cv2.imread('images.jpg',cv2.IMREAD_COLOR)
img[55,55] = [255,255,255]

px = img[55,55]

print(px) 

#region of image
roi = img[100:150,100:150] = [255,255,255] #this region will become a big white patch

print(roi)

watch_face = img[37:111,107:194]
img[0:74,0:87] = watch_face


cv2.imshow('image',img)
cv2.waitkey(0)
cv2.destroyAllWindows()