拒绝盗图!教你怎么用python给图片加水印

import numpy as np
import matplotlib.pyplot as plt
%matplotlib qt5
# 绘制图表内容
fig, ax = plt.subplots()
ax.plot(np.random.rand(10), '-o', ms=10, lw=2, alpha=0.7)
ax.grid()

# 叠加水印文字，对文字沿轴旋转30°，透明度50%
ax.text(0.5, 0.5, 'created with https://blog.csdn.net/Bit_Coders/', transform=ax.transAxes,
        fontsize=20, color='gray', alpha=0.5,
        ha='center', va='center', rotation='30')

plt.show()

myqr https://blog.csdn.net/Bit_Coders

import numpy as np
from PIL import Image
import matplotlib.image as image
import matplotlib.pyplot as plt
from matplotlib import cm

# 加载水印图片，并缩放到合适大小
resize_w = 100
img = Image.open('J:\Projects\PythonScripts\qrcode.png')
img = img.resize((resize_w,resize_w))

fig, ax = plt.subplots()

# 绘制图表内容
ax.plot(np.random.rand(10), '-o', ms=10, lw=2, alpha=0.7)
ax.grid()

# 确定叠加位置
nx = int(fig.get_figwidth() * fig.dpi)
ny = int(fig.get_figheight() * fig.dpi)
pos_x = nx - resize_w 
pos_y = 10

# 叠加图片水印
fig.figimage(img, pos_x,pos_y, alpha=.5)

plt.show()