I have computed an image with values between 0 and 255. When I use imageview(), the image is correctly displayed, in grey levels, but when I want to save this image or display it with imshow, I have a white image, or sometimes some black pixels here and there:
![image with imshow(), it appears the same when I save](https://i.stack.imgur.com/ZFk5d.png)
Whereas with imageview():
![enter image description here](https://i.stack.imgur.com/AZZ1a.png)
Can some one help me?
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