Python - matplotlib畫圖表

import pyplot、image

from matplotlib import pyplot as plt
from matplotlib import image as img

Display a Matplotlib RGB Image

image = img.imread(ImageFilePath)
plt.imshow(image)
plt.show()

Add a arbitrary line

plt.plot([x0,x1],[y0,y1],"r")

Invert axis

plt.gca().invert_xaxis()
plt.gca().invert_yaxis()