a should be a matplotlib.image.AxesImage instance, in which case you can use a.get_array(). and a.set_array(data). ... <看更多>

Expected behaviour imshow should open a window Actual behaviour python process running but no window shows Steps to reproduce def ... ... <看更多>

plt.imshow(I, cmap='gray');. All the available colormaps are in the plt.cm namespace; using IPython's tab-completion will give you a full list of built-in ... ... <看更多>

... <看更多>