TypeError: Image data cannot be converted to float while loading .npy file

Question

I want to load .npy file in Anaconda3 Prompt.

My code is:

import numpy as np
from matplotlib import pyplot as plt
img_array = np.load.('delta1.npy',encoding = 'latin1')
plt.imshow(img_array,cmap = "gray")
plt.show()

I'm getting the following error:

Traceback (most recent call last):
  File "check1.py", line 12, in <module>
    plt.imshow(img_array,cmap = "gray")
  File "C:\Users\Mohammed\Anaconda3\lib\site-packages\matplotlib\pyplot.py", line 2699, in imshow
    None else {}), **kwargs)
  File "C:\Users\Mohammed\Anaconda3\lib\site-packages\matplotlib\__init__.py", line 1810, in inner
    return func(ax, *args, **kwargs)
  File "C:\Users\Mohammed\Anaconda3\lib\site-packages\matplotlib\axes\_axes.py", line 5494, in imshow
    im.set_data(X)
  File "C:\Users\Mohammed\Anaconda3\lib\site-packages\matplotlib\image.py", line 634, in set_data
    raise TypeError("Image data cannot be converted to float")
TypeError: Image data cannot be converted to float

I want to know exactly what mistake I did that I got the error above.Can anyone help me with this?

Answer 1

You need to convert your numpy array to an Image format to be able to plt.imshow() it.

from PIL import Image
img = Image.fromarray(img_array)
plt.imshow(img, cmap = "gray")

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