Python plt close the coordinate axis, the scale is not visible

1. Close the coordinate scale (plt and AxesSubplot)

• plt

  plt .xticks ( [])
  plt .yticks ( [])

  Close the axis:

  plt.axis('off')

  Note that if similar operations are to work, they need to be placed before plt.show () and after plt.imshow ().

 

• 对于 ax（matplotlib.axes._subplots.AxesSubplot）

  ax.set_xticks([])
  ax.set_yticks([])

 

 

2. Set the dpi of the image to be saved

• dpi：Dots Per Inch

plt.savefig(..., dpi=150)

 

3. The coordinate axis is not visible

frame = plt.gca()
# y axis is not visible
frame.axes.get_yaxis().set_visible( False)
# x axis is not visible
frame.axes.get_xaxis().set_visible( False)