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Python | Bar Code

In this tutorial, we are going to learn how to generate a random barcode in Python using matplotlib?
Submitted by Anuj Singh, on August 20, 2020

Illustrations:

Python code for bar code

import matplotlib.pyplot as plt
import numpy as np

# the bar
x = np.random.rand(500) > 0.7

fig = plt.figure()

# a barcode
ax = fig.add_axes([0.3, 0.4, 0.6, 0.2])
ax.set_axis_off()
ax.imshow(x.reshape((1, -1)), aspect='auto', 
          cmap='binary', interpolation='nearest')
ax.set_title('Barcode Example 1')
plt.show()

##########################################
##########################################

x = np.random.rand(500) > 0.7

fig = plt.figure()

# a barcode
ax = fig.add_axes([0.3, 0.4, 0.6, 0.2])
ax.set_axis_off()
ax.imshow(x.reshape((1, -1)), aspect='auto', 
          cmap='binary', interpolation='nearest')
ax.set_title('Barcode Example 2')
plt.show()

##########################################
##########################################

x = np.random.rand(500) > 0.7

fig = plt.figure()

# a barcode
ax = fig.add_axes([0.3, 0.4, 0.6, 0.2])
ax.set_axis_off()
ax.imshow(x.reshape((1, -1)), aspect='auto', 
          cmap='binary', interpolation='nearest')
ax.set_title('Barcode Example 3')
plt.show()

Output:

Output is as Figure