Note
Go to the end to download the full example code.
Reading and writing an elephant¶
Read and write images
import numpy as np
import matplotlib.pyplot as plt
original figure¶
plt.figure()
img = plt.imread("../../../data/elephant.png")
plt.imshow(img)
<matplotlib.image.AxesImage object at 0x7fa325bec3d0>
red channel displayed in grey¶
plt.figure()
img_red = img[:, :, 0]
plt.imshow(img_red, cmap=plt.cm.gray)
<matplotlib.image.AxesImage object at 0x7fa326294d10>
lower resolution¶
plt.figure()
img_tiny = img[::6, ::6]
plt.imshow(img_tiny, interpolation="nearest")
plt.show()
Total running time of the script: (0 minutes 0.237 seconds)