Python | Varying Density of Bar Code

Varying Density of Bar Code: In this article, we are going to dense bar code in matplotlib.
Submitted by Anuj Singh, on August 27, 2020

Matplotlib allows us to vary the density of a bar graph and the following example shows lighter, densed, and extremely dense bar codes. This example can be used as a reference for the implementation of different bar codes.

Illustrations:

Python (varying-density)

Python code for varying density of bar code

import matplotlib.pyplot as plt
import numpy as np

# the bar
x = np.random.rand(500) > 0.9

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('Light Barcode Example 1')
plt.show()

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

x = np.random.rand(500) > 0.2

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('Extreamly Densed Barcode Example 2')
plt.show()

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

x = np.random.rand(500) > 0.4

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('Densed Barcode Example 3')
plt.show()

Output:

Output is as Figure





Comments and Discussions

Ad: Are you a blogger? Join our Blogging forum.





Languages: » C » C++ » C++ STL » Java » Data Structure » C#.Net » Android » Kotlin » SQL
Web Technologies: » PHP » Python » JavaScript » CSS » Ajax » Node.js » Web programming/HTML
Solved programs: » C » C++ » DS » Java » C#
Aptitude que. & ans.: » C » C++ » Java » DBMS
Interview que. & ans.: » C » Embedded C » Java » SEO » HR
CS Subjects: » CS Basics » O.S. » Networks » DBMS » Embedded Systems » Cloud Computing
» Machine learning » CS Organizations » Linux » DOS
More: » Articles » Puzzles » News/Updates


© https://www.includehelp.com some rights reserved.