matplotlib.pyplot.imread() in Python
Last Updated :
22 Apr, 2020
Matplotlib is a library in Python and it is numerical – mathematical extension for NumPy library. Pyplot is a state-based interface to a Matplotlib module which provides a MATLAB-like interface.
matplotlib.pyplot.imread() Function:
The imread() function in pyplot module of matplotlib library is used to read an image from a file into an array.
Syntax: matplotlib.pyplot.imread(fname, format=None)
Parameters: This method accepts the following parameters.
- fname : This parameter is the image file to read.
- format: This parameter is the image file format assumed for reading the data.
Returns: This method return the following.
- imagedata : This returns the image data
Below examples illustrate the matplotlib.pyplot.imread() function in matplotlib.pyplot:
Example #1:
import numpy as np
import matplotlib.cbook as cbook
import matplotlib.image as image
import matplotlib.pyplot as plt
with cbook.get_sample_data( 'loggf.png' ) as image_file:
image = plt.imread(image_file)
fig, ax = plt.subplots()
ax.imshow(image)
ax.axis( 'off' )
plt.title( 'matplotlib.pyplot.imread() function Example' ,
fontweight = "bold" )
plt.show()
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Output:
Example #2:
import numpy as np
import matplotlib.cbook as cbook
import matplotlib.image as image
import matplotlib.pyplot as plt
with cbook.get_sample_data( 'loggf.png' ) as file :
im = image.imread( file )
fig, ax = plt.subplots()
ax.plot(np.cos( 10 * np.linspace( 0 , 1 )), '-o' , ms = 15 ,
alpha = 0.6 , mfc = 'green' )
ax.grid()
fig.figimage(im, 10 , 10 , zorder = 3 , alpha = . 5 )
plt.title( 'matplotlib.pyplot.imread() function Example' ,
fontweight = "bold" )
plt.show()
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Output:
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