python - 将 matplotlib.pylab 的 imshow 与 python ide 一起使用？

Question

我尝试在 photutil 中运行示例

一切正常，除了线路

plt.imshow(image, cmap='gray_r', origin='lower')

这不会引发异常但不会显示图像。我用的是 eric ide。

Answer 1

之后你需要调用plt.show()。

来自Matplotlib FAQ :

When you want to view your plots on your display, the user interface backend will need to start the GUI mainloop. This is what show() does. It tells matplotlib to raise all of the figure windows created so far and start the mainloop. Because this mainloop is blocking by default (i.e., script execution is paused), you should only call this once per script, at the end. Script execution is resumed after the last window is closed.