How to show multiple images in one figure?

Question

I use Python lib matplotlib to plot functions, and I know how to plot several functions in different subplots in one figure, like this one,

And when handling images, I use imshow() to plot images, but how to plot multiple images together in different subplots with one figure?

Answer 1

The documentation provides an example (about three quarters of the way down the page):

import matplotlib.pyplot as plt import matplotlib.image as mpimg import numpy as np fig = plt.figure() a=fig.add_subplot(1,2,1) img = mpimg.imread('../_static/stinkbug.png') lum_img = img[:,:,0] imgplot = plt.imshow(lum_img) a.set_title('Before') plt.colorbar(ticks=[0.1,0.3,0.5,0.7], orientation ='horizontal') a=fig.add_subplot(1,2,2) imgplot = plt.imshow(lum_img) imgplot.set_clim(0.0,0.7) a.set_title('After') plt.colorbar(ticks=[0.1,0.3,0.5,0.7], orientation='horizontal')  # --------------------------------------- # if needed inside the application logic, uncomment to show the images # plt.show() 

Basically, it's the same as you do normally with creating axes with fig.add_subplot...