Python添加水印

以下有两种添加水印的方法，第一种和第二种的区别是实现透明图层的方式不一样

一.图片叠加实现图层透明

#-*- coding:utf-8 -*-
import requests as req
from mysqlDemo import switchLogoUrl
from io import BytesIO
from PIL import Image, ImageDraw
from PIL import ImageFont
from numpy import *

'''
@param srcImgPath  原图片的路径
@param Content1    水印的内容1
@param logoImg     logo图片路径
@param Content2    水印的内容2
@param jd          经度
@param wd          纬度
@param siteCode    污染源地址
'''
#font = ImageFont.truetype("C:WindowsFonts微软雅黑msyhbd.ttc", 44)
typeface = 'C:WindowsFonts微软雅黑msyhbd.ttc'#常规
typefaceBold = 'C:WindowsFonts微软雅黑msyhbd.ttc'#粗体


def mark(srcImgPath, Content1, logoImg, Content2, jd, wd, siteCode):
    img1= Image.open(BytesIO(req.get(srcImgPath).content)).convert('RGBA')
    img2 = Image.open(BytesIO(req.get(srcImgPath).content)).convert('RGBA')
    # 第一张图上加一个画图
    draw = ImageDraw.Draw(img1)

    # 黑色  (x0,y0)左上，（x1,y1）右下
    draw.rectangle([img1.size[0]-230, img1.size[1]-550, img1.size[0]-230+200, img1.size[1]-550+450 ],fill='black',outline='black', width=1)
    #把两张图叠加添加透明图层
    image = Image.blend(img1, img2, 0.7)
    #在加了透明图层的新图上添加图层
    draw = ImageDraw.Draw(image)

    # 白框
    draw.rectangle([image.size[0] - 215, image.size[1] - 535, image.size[0] - 215 + 170, image.size[1] - 535 + 420],
                   outline='white', width=1)

    draw.text((image.size[0] - 200, image.size[1] - 510), "AI全息影像告警", "WHITE",
              font=ImageFont.truetype(typeface, 20))  # 设置文字位置/内容/颜色/字体

    # 打开logo图
    logoim = Image.open(BytesIO(req.get(logoImg).content), 'r')
    # 修改图片的尺寸,把logo图片缩小一倍
    out = logoim.resize(((logoim.size[0]) // 2, (logoim.size[1]) // 2), Image.ANTIALIAS)
    #添加水印图片：第一种为图片本身颜色，第二种需要指定颜色，默认为白色
    image.alpha_composite(out, (image.size[0] - 160, image.size[1] - 410))
    #draw.bitmap((image.size[0] - 160, image.size[1] - 410), out, fill=128)

    draw.text((image.size[0] - 200, image.size[1] - 460), Content1, "WHITE", font=ImageFont.truetype(typefaceBold, 34))
    draw.text((image.size[0] - 190, image.size[1] - 340), "区域实时AQI", "WHITE", font=ImageFont.truetype(typefaceBold, 20))
    if (int(Content2) > 99) & (int(Content2) < 1000):
        draw.text((image.size[0] - 170, image.size[1] - 310), str(Content2), "WHITE",
                  font=ImageFont.truetype(typeface, 40))
    elif (int(Content2)) < 10:
        draw.text((image.size[0] - 145, image.size[1] - 310), str(Content2), "WHITE",
                  font=ImageFont.truetype(typeface, 40))
    else:
        draw.text((image.size[0] - 150, image.size[1] - 310), str(Content2), "WHITE",
                  font=ImageFont.truetype(typeface, 40))
    draw.text((image.size[0] - 190, image.size[1] - 260), "污染源经纬度", "WHITE", font=ImageFont.truetype(typefaceBold, 20))

    draw.text((image.size[0] - 190, image.size[1] - 230), "经度:" + str(jd), "WHITE",
              font=ImageFont.truetype(typeface, 15))
    draw.text((image.size[0] - 190, image.size[1] - 200), "纬度:" + str(wd), "WHITE",
              font=ImageFont.truetype(typeface, 15))

    draw.text((image.size[0] - 190, image.size[1] - 170), "污染源地址:", "WHITE", font=ImageFont.truetype(typefaceBold, 15))
    draw.text((image.size[0] - 110, image.size[1] - 170), siteCode[0:3], "WHITE", font=ImageFont.truetype(typeface, 15))
    draw.text((image.size[0] - 190, image.size[1] - 140), siteCode[3:], "WHITE", font=ImageFont.truetype(typeface, 15))

    draw = ImageDraw.Draw(image)

    image.show()
    image.save("D://tmp//TIMING.png")



img_src = "http://139.159.250.114:22816/20200611/E10550120/111.59.168.168_01_20200611092607736_TIMING.jpg"
Content1="秸秆焚烧"

#更具mtype的值返回logo图片
logoImg=switchLogoUrl.switcher.get(int(14))()
print(logoImg)
Content2=100
jd=109.27713
wd=21.5076
siteCode="北铁机场高速"

mark(img_src,Content1,logoImg,Content2,jd,wd,siteCode,)

效果图：

二.指定位置添加透明图层

#-*- coding:utf-8 -*-
from mysqlDemo import switchLogoUrl
import requests as req
import uuid
from io import BytesIO
from PIL import Image, ImageDraw
from PIL import ImageFont
from numpy import *

'''
@param srcImgPath  原图片的路径
@param Content1    水印的内容1
@param logoImg     logo图片路径
@param Content2    水印的内容2
@param jd          经度
@param wd          纬度
@param siteCode    污染源地址
'''
typeface = 'C:WindowsFonts微软雅黑msyhbd.ttc'#常规
typefaceBold = 'C:WindowsFonts微软雅黑msyhbd.ttc'#粗体


def mark(srcImgPath, Content1, logoImg, Content2, jd, wd, siteCode):
    image= Image.open(BytesIO(req.get(srcImgPath).content)).convert('RGBA')
    # 第一张图上加一个画图
    draw = ImageDraw.Draw(image)

    # 黑色  (x0,y0)左上，（x1,y1）右下，这种需要合并两个图层达到图层透明
    #draw.rectangle([image.size[0]-230, image.size[1]-550, image.size[0]-230+200, image.size[1]-550+450 ],fill='black',outline='black', width=1)
    #指定区域位置设置透明度
    b=(0,0,0) #黑色
    opacity=0.3
    #横坐标开始位置，结束位置
    for x in range(image.size[0]-230,image.size[0]-230+200):
        #纵坐标的开始位置，结束位置
         for y in range(image.size[1]-550,image.size[1]-550+450 ):
             p = image.getpixel((x, y))
             p = [int(p[i] * (1 - opacity) + b[i] * opacity) for i in range(3)]
             image.putpixel((x, y), tuple(p))

    #在加了透明图层的新图上添加图层
    draw = ImageDraw.Draw(image)

    # 白框
    draw.rectangle([image.size[0] - 215, image.size[1] - 535, image.size[0] - 215 + 170, image.size[1] - 535 + 420],
                   outline='white', width=1)

    draw.text((image.size[0] - 200, image.size[1] - 510), "AI全息影像告警", "WHITE",
              font=ImageFont.truetype(typeface, 20))  # 设置文字位置/内容/颜色/字体

    # 打开logo图
    logoim = Image.open(BytesIO(req.get(logoImg).content), 'r')
    # 修改图片的尺寸,把logo图片缩小一倍
    out = logoim.resize(((logoim.size[0]) // 2, (logoim.size[1]) // 2), Image.ANTIALIAS)
    #添加水印图片：第一种为图片本身颜色，第二种需要指定颜色，默认为白色
    image.alpha_composite(out, (image.size[0] - 160, image.size[1] - 410))
    #draw.bitmap((image.size[0] - 160, image.size[1] - 410), out, fill=128)

    draw.text((image.size[0] - 200, image.size[1] - 460), Content1, "WHITE", font=ImageFont.truetype(typefaceBold, 34))
    draw.text((image.size[0] - 190, image.size[1] - 340), "区域实时AQI", "WHITE", font=ImageFont.truetype(typefaceBold, 20))
    if (int(Content2) > 99) & (int(Content2) < 1000):
        draw.text((image.size[0] - 170, image.size[1] - 310), str(Content2), "WHITE",
                  font=ImageFont.truetype(typeface, 40))
    elif (int(Content2)) < 10:
        draw.text((image.size[0] - 145, image.size[1] - 310), str(Content2), "WHITE",
                  font=ImageFont.truetype(typeface, 40))
    else:
        draw.text((image.size[0] - 150, image.size[1] - 310), str(Content2), "WHITE",
                  font=ImageFont.truetype(typeface, 40))
    draw.text((image.size[0] - 190, image.size[1] - 260), "污染源经纬度", "WHITE", font=ImageFont.truetype(typefaceBold, 20))

    draw.text((image.size[0] - 190, image.size[1] - 230), "经度:" + str(jd), "WHITE",
              font=ImageFont.truetype(typeface, 15))
    draw.text((image.size[0] - 190, image.size[1] - 200), "纬度:" + str(wd), "WHITE",
              font=ImageFont.truetype(typeface, 15))

    draw.text((image.size[0] - 190, image.size[1] - 170), "污染源地址:", "WHITE", font=ImageFont.truetype(typefaceBold, 15))
    draw.text((image.size[0] - 110, image.size[1] - 170), siteCode[0:3], "WHITE", font=ImageFont.truetype(typeface, 15))
    draw.text((image.size[0] - 190, image.size[1] - 140), siteCode[3:], "WHITE", font=ImageFont.truetype(typeface, 15))

    draw = ImageDraw.Draw(image)
    return image



#Python   UUID的调用
print(str(uuid.uuid1()).replace("-",''))

img_src = "http://139.159.250.114:22816/20200611/E10550120/111.59.168.168_01_20200611092607736_TIMING.jpg"
Content1="秸秆焚烧"
 #更具mtype的值返回logo图片
logoImg=switchLogoUrl.switcher.get(int(14))()
print(logoImg)
Content2=100
jd=109.27713
wd=21.5076
siteCode="北铁机场高速"

img=mark(img_src,Content1,logoImg,Content2,jd,wd,siteCode,)
img.show()

效果图：