python实现图片加文字水印OPenCV和PIL库

pip install opencv-Python

# -*- coding: utf-8 -*-
import cv2
# 载入突破
img = cv2.imread('test.jpg')
# 给图片添加文字水印
# cv2.putText(图像,需要添加字符串,需要绘制的坐标,字体类型,字号,字体颜色,字体粗细)
img2 = cv2.putText(img, 'test', (100, 100), cv2.LINE_AA, 2, (249, 249, 249), 4)
# 保存图片
cv2.imwrite('wj.jpg', img2)
# 下面是将生成的图片再弹窗中显示
cv2.imshow('img',img2)
cv2.waiTKEy(0)
cv2.destoryAllwindows('img')

# -*- coding: utf-8 -*-
import cv2
import numpy
from PIL import Image, ImageDraw, ImageFont
img = cv2.imread('test.jpg')
# 判断是否是openCV图片类型
if (isinstance(img, numpy.ndarray)):
    # 转化成PIL类型
    img = Image.fromarray(cv2.cvtColor(img, cv2.COLOR_BGR2RGB))
draw = ImageDraw.Draw(img)
# 字体的格式
textSize = 80
fontStyle = ImageFont.truetype(
    "font/simsun.ttc", textSize, encoding="utf-8")
# 绘制文本
left = 100
top = 100
text = '中国'
textColor = (168, 121, 103)
draw.text((left, top), text, textColor, font=fontStyle)
# 转换回OpenCV类型
img2 = cv2.cvtColor(numpy.asarray(img), cv2.COLOR_RGB2BGR)
# 保存图片
cv2.imwrite('wj.jpg', img2)
cv2.imshow('img',img2)
cv2.waitKey(0)
cv2.destoryAllWindows('img')