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Python:读取数据库+图片上增加文字

Python:读取数据库+图片上增加文字

作者: 玉米fight | 来源:发表于2020-04-17 11:01 被阅读0次

    流程:
    1.数据库创建
    2.python依赖库安装与连接
    3.图片坐标定位与文字填入
    4.数据库文字回填
    一、数据库创建
    使用Navicat来创建库和表。如下图,为Information_DS建立4个表

    image.png 终端连接mysql:mysql -u root -proot (用户名、密码,其中-p后面不接空格)
    Q&A:
    1.输入字符时,提示Incorrect string value: '\xE4\xBC\x9A\xE5\x91\x98' for column 'recipient' at row 1
    解答:修改字段字符集为utf 16
    2.外键约束设置
    解答:其他表设置外键,删除时“set null”、更新时“Restrict”。对应主键的数据类型、位数、名称都必须一致 image.png
    二、python依赖库安装与连接
    1)安装
    终端执行如下4条命令:
    #shell终端
    〇 xcode-select --install
    ①ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
    ②brew unlink mysql-connector-c
    ③brew install mysql
    

    Q&A:

    1.fatal error :'my_config.h' file not found image.png
    解答:

    1:安装的mysql库没有加入环境变量,需要找到安装的mysql存放在哪个目录。终端窗口执行:

    #shell终端
    find / -name mysql_config #查找到.h文件路径
    vi ~/.bash_profile 
    export PATH=$PATH:.h文件路径
    source ~/.bash_profile
    

    2.MySQL不是单独安装的,是安装的一个MAMP集成开发环境包,在MAMP中PHP和MySQL的头文件都是没有的,所以会报出这个错误。我们有两种解决方式,一种是重新编译MySQL,一种是单独安装mysq-connector-c,因为开发环境包已经自带了MySQL了,我们就不再编译安装了,单独安装就ok。
    Mac执行以下语句即可:brew install mysql-connector-c,再次执行pip install MySQL-python,出现报错:File "setup_posix.py",line 8,in dequote

    image.png 解答:https://www.jianshu.com/p/da9dd5dd4bd2
    2)连接
    python中数据库连接,输出单个文字
    try:
        conn=pymysql.connect(host='localhost',user='root', password='root',database='Information_DS',charset='utf8')
        sql="select * from People"
        cur=conn.cursor()
        cur.execute(sql)
        data=cur.fetchall()
        conn.close()
        print data[0][1]
    except Exception,e:
        print e
    

    Q&A:

    1.输出的字符显示\xe7等 image.png 解答:

    可能1:数据库编码需要改成utf-8,

    1. Navicat中,选择“设计表”-“选项”,修改默认字符集“utf8”,默认排序规则“utf8_general_ci”,字段页也需要修改对应的字符集。 image.png image.png

      2)终端中,查看和修改字符集如下:

    #shell终端
    mysql -u root -proot
    use Information_DS;
    show full columns from 表名;
    alter table 表名 convert to character set 字符集;
    

    可能2:不支持中文,需要单个输出才能显示中文如:people[0][0]
    三、图片坐标定位与文字填入
    1)身份证ps掉关键字段

    image.png image.png 2)查询字段坐标位置
    from PIL import Image
    import matplotlib.pyplot as plt
    #显示图片具体位置坐标
    #正面(110,70)姓名  (110,112)性别  (245,112)民族   (110,160)年 (211,160)月 (272,160)日 (110,200)住址 (197,320)证号
    #反面 (241,280)机关  (241,327)有效期限
    img = Image.open('/Users/funny/Downloads/back.jpg')
    
    plt.figure("Image") # 图像窗口名称
    plt.imshow(img)
    plt.axis('on') # 关掉坐标轴为 off
    plt.show()
    

    3)图片上增加文字
    网上下载.ttf格式的字体,双击安装,默认Mac OS文字库路径:/System/Library/Fonts/

    im=Image.open('/Users/funny/Downloads/front.jpg')
    draw=ImageDraw.Draw(im)
    newfont=ImageFont.truetype('/Users/funny/Library/Fonts/微软vista黑体.ttf',20)
    draw.text((110,70),'fun',(0,0,0),font=newfont)
    draw.text((110,112),'girl',(0,0,0),font=newfont)
    draw.text((245,112),'a',(0,0,0),font=newfont)
    draw.text((110,160),'1990',(0,0,0),font=newfont)
    draw.text((211,160),'01',(0,0,0),font=newfont)
    draw.text((272,160),'22',(0,0,0),font=newfont)
    draw.text((110,200),'guangdongshenzhen',(0,0,0),font=newfont)
    draw.text((197,320),'44522119900122',(0,0,0),font=newfont)
    im.show()
    im.save('/Users/funny/Downloads/1.jpg')
    
    显示效果: image.png image.png

    如果是中文字,需要修改成

    draw.text((110,70),u'程程',(0,0,0),font=newfont)
    

    **四、数据库文字回填 **

    #!/usr/bin/python
    # -*- coding: UTF-8 -*-
    
    import os
    from PIL import Image,ImageFont,ImageDraw
    import pymysql
    import sys
    import datetime
    import cv2
    reload(sys)
    sys.setdefaultencoding('utf8')
    
    
    def DrawID():
    
        conn = pymysql.connect(host='localhost', user='root', password='root', database='Information_DS', charset='utf8')
        sql = "select People.idCard,name,sex,ethnicity,birth,idAddress,authority,beginDate,endDate from People,IDcard where People.idCard =IDcard.idCard"
        cur = conn.cursor()
        cur.execute(sql)
        data = cur.fetchall()
        conn.close()
    
        for row in data:
    
            idCard = row[0]
            name = row[1]
            sex = row[2]
            ethnicity = row[3]
            birth = row[4]
            birth_Y = str(birth)[0:4]
            birth_M = str(birth)[5:7]
            birth_D = str(birth)[8:10]
            idAddress = row[5]
            Add_front = idAddress[:15]
            Add_back = "\n"+idAddress[15:]
            authority = row[6]
            beginDate = row[7]
            begin_Y = str(beginDate)[0:4]
            begin_M = str(beginDate)[5:7]
            begin_D = str(beginDate)[8:10]
            benginDateformat = begin_Y + "." + begin_M + "." + begin_D
            endDate = row[8]
            end_Y = str(endDate)[0:4]
            end_M = str(endDate)[5:7]
            end_D = str(endDate)[8:10]
            endDateformat = end_Y + "." + end_M + "." + end_D
            expireDate = benginDateformat + '-' + endDateformat
    
    
            im=Image.open('/Users/funny/Downloads/front.jpg')
            newfont = ImageFont.truetype('/Users/funny/Library/Fonts/微软vista黑体.ttf', 20)
            draw=ImageDraw.Draw(im)
            draw.text((110,70),name,(0,0,0),font=newfont)
            draw.text((110,112),sex,(0,0,0),font=newfont)
            draw.text((245,112),ethnicity,(0,0,0),font=newfont)
            draw.text((110,160),birth_Y,(0,0,0),font=newfont)
            draw.text((211,160),birth_M,(0,0,0),font=newfont)
            draw.text((272,160),birth_D,(0,0,0),font=newfont)
            draw.text((110,200),Add_front,(0,0,0),font=newfont)
            draw.text((110,205),Add_back, (0, 0, 0), font=newfont)
            draw.text((197,320),idCard,(0,0,0),font=newfont)
            #im.show()
            im.save('/Users/funny/Downloads/身份证/'+name+'_正面.jpg')
    
            im2=Image.open('/Users/funny/Downloads/back.jpg')
            draw=ImageDraw.Draw(im2)
            newfont=ImageFont.truetype('/Users/funny/Library/Fonts/微软vista黑体.ttf',20)
            draw.text((241,268),authority,(0,0,0),font=newfont)
            draw.text((241,315),expireDate,(0,0,0),font=newfont)
            #im2.show()
            im2.save('/Users/funny/Downloads/身份证/'+name+'_反面.jpg')
    
    
    if __name__=="__main__":
        DrawID()
    

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