import numpy as np
import cv2
import math
print("version openCV:"+str(  cv2.__version__ ))


img = cv2.imread('img.jpg',cv2.IMREAD_COLOR)

print(img)

print(type(img))

print(img.shape)
print(img.dtype)
print("rapport d aspect: "+str(img.shape[1]/img.shape[0]))

print("pixel en 1,1:"+str(img[1][1]))

img[1][1][1]=255
img[1][1][0]=0
img[1][1][2]=0

print("pixel en 1,1:"+str(img[1][1]))


#cv2.imwrite('imggray.png',img)
#cv2.imwrite('imggray.jpg',img)


ball = img[280:340, 330:390]
img[273:333, 100:160] = ball



haut=60
larg=60
v0=264
u0=700
ball = img[v0:v0+haut, u0:u0+larg]
for n in range(3):
  v1=224
  u1=442
  img[v1:v1+haut, n*100+u1:n*100+u1+larg] = ball


for n in range(256):
  for m in range(256):
    img[n][m][0]= m
    img[n][m][1]= 0
    img[n][m][2]= n

    
cv2.imwrite('imgcolor.png',img)
#
cv2.imshow('image',img)
cv2.waitKey(0)
cv2.destroyAllWindows()