如何在谷歌 Colab 中显示图像？

Question

当我使用

cv2.imshow(img)

colab 抛出DisabledFunctionError ( https://github.com/jupyter/notebook/issues/3935 )。 使用 cv2_imshow(img) 我得到另一个错误， AttributeError: 'NoneType' object has no attribute 'clip') 。

我该如何解决这个问题？

Answer 1

在 Google Colab 中使用 cv2.imshow(img) 会返回此 output：

DisabledFunctionError: cv2.imshow() is disabled in Colab, because it causes Jupyter sessions
to crash; see https://github.com/jupyter/notebook/issues/3935.
As a substitution, consider using
  from google.colab.patches import cv2_imshow

因此，您可以简单地使用：

from google.colab.patches import cv2_imshow
import matplotlib.pyplot as plt

img = "yourImage.png"
img = cv2.imread(img) # reads image
plt.imshow(img)

Answer 2

尝试这个：

from google.colab.patches import cv2_imshow
cv2_imshow(img)