matplotlib - grid - 网格

[junxnone]

Reference

• [ ] Python绘图库Matplotlib.pyplot之网格线设置（plt.grid()）

Brief

plt.grid()

• 虚实线

  plt.grid(linestyle='-.')
  plt.grid(ls='--')

• 颜色

  plt.grid(c='r')

• 只显示 x/y 轴

  plt.grid(axis="x")
  plt.grid(axis="y")

Example

import cv2
import matplotlib.pyplot as plt
%matplotlib inline

img_path = 'xxxx'
bgr_img = cv2.imread(img_path)
img = cv2.cvtColor(bgr_img, cv2.COLOR_BGR2RGB)
fig = plt.figure(figsize=(20,20))
ax = fig.add_subplot(111)
ax.xaxis.set_ticks(range(0, img.shape[1], 100))
ax.yaxis.set_ticks(range(0, img.shape[0], 100))
plt.grid(alpha=0.3)
plt.imshow(img)

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