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png file shows bluish image when using plt.imshow()
发布于 2020-11-25 19:45:41
I'm trying to plot a png file using matplotlib.pyplot.imshow() but it's showing a bluish image(see below). It works for jpeg file but not for png.
This is the code:
import matplotlib.pyplot as plt
import numpy as np
from PIL import Image
im = Image.open('apple_logo.png')
im.save('test.png') #test.png is same as original
data = np.array(im)
print(data)
plt.imshow(data) #shows a bluish image of the logo
The image i'm using:
bluish image:
Python 3.8.2
matplotlib 3.3.0
Pillow 7.2.0
numpy 1.19.0
OS: Windows 10
Questioner
Manik
Viewed
1
thanks! it worked. But can you tell me how does png files' array store which pixel is transparent? because when I do
print(data)the array contains arrays of just 3 elements like[255 255 255]only for rgb colors same as jpg files.