Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
How to show numpy 2D array as grayscale image in Jupyter Notebook?
To show a 2D array as a grayscale image in Jupyter Notebook, we can take the following steps
Steps
Set the figure size and adjust the padding between and around the subplots.
Create a random data using numpy.
Display the data as an image, i.e., on a 2D regular raster, with gray colormap.
To display the figure, use Show() method.
Example
from matplotlib import pyplot as plt import numpy as np # Set the figure size plt.rcParams["figure.figsize"] = [7.00, 3.50] plt.rcParams["figure.autolayout"] = True # Random data points data = np.random.rand(5, 5) # Plot the data using imshow with gray colormap plt.imshow(data, cmap='gray') # Display the plot plt.show()
Output
It will produce the following output −
Updated on: 09-Oct-2021
4K+ Views
Advertisements