In [24]:

    

import numpy as np
import cv2


    

In [25]:

    

import matplotlib.pyplot as plt
import matplotlib.image as mpimg


    

In [26]:

    

im = mpimg.imread('lena.png')


    

In [43]:

    

image = plt.imshow(im)
plt.gray()
plt.show()


    

In [28]:

    

print im.min()
print im.max()


    

    




0.0
1.0

In [59]:

    

img = cv2.imread('lena.png')
three = cv2.threshold(img, 100, 255, cv2.THRESH_BINARY)
plt.imshow(three[1])
plt.show()


    

In [ ]: