Matplotlib – Plot over an image background in Python

To plot over an image background, we can take the following steps−

• Read an image from a file into an array.
• Create a figure (fig) and add a set of subplots (ax) with extent [0, 300, 0, 300].
• Create an array x of range (300).
• Plot x using plot() method with linestyle=dotted, linewidth=2, and color=red.
• To display the figure, use show() method.

Example

import numpy as np
from matplotlib import pyplot as plt
plt.rcParams["figure.figsize"] = [7.00, 3.50]
plt.rcParams["figure.autolayout"] = True
im = plt.imread("bird.jpg")
fig, ax = plt.subplots()
im = ax.imshow(im, extent=[0, 300, 0, 300])
x = np.array(range(300))
ax.plot(x, x, ls='dotted', linewidth=2, color='red')
plt.show()

Output

Rishikesh Kumar Rishi

Updated on 06-May-2021 13:26:18

• Related Questions & Answers
• How to plot an animated image matrix in matplotlib?
• Plot a vector field over the axes in Python Matplotlib?
• How to plot a layered image in Matplotlib in Python?
• How to plot a watermark image in Matplotlib?
• How to apply pseudo color schemes to an image plot in Matplotlib?
• Gaussian filtering an image with NaN in Python Matplotlib
• How to plot an array in Python using Matplotlib?
• Flip an image on mouse over with CSS
• How to plot an angle spectrum using Matplotlib in Python?
• CSS background-image property
• How to plot an image with non-linear Y-axis with Matplotlib using imshow?
• How to a plot stem plot in Matplotlib Python?
• Set the background image of an element with CSS
• Turn an image into a Bootstrap 4 card background
• How to remove grid lines from an image in Python Matplotlib?