python qrcode 二维码

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用qrcode包做的生成字符串的二维码的脚本

ps: ubuntu下有个可以终端显示二维码像素点的软件：qrencode

输入qrencode -o - -t UTF8，输入字符串，然后ctrl+D结束

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#coding:utf-8

import qrcode
from PIL import Image
import os

def openpic(filename):
    os.system("eog " + filename)

# 生成二维码图片
def make_qr(string, pic_name):
    qr = qrcode.QRCode(
        version = 4,  # 生成二维码尺寸的大小 1-40  1:21*21（21+(n-1)*4）
        error_correction = qrcode.constants.ERROR_CORRECT_M, #L:7% M:15% Q:25% H:30%
        box_size = 10, # 每个格子的像素大小
        border = 2, # 边框的格子宽度大小
    )

    qr.add_data(string)
    qr.make(fit = True)
    img = qr.make_image()
    img.save(pic_name)
    openpic(pic_name) 


# 生成带logo的二维码图片

def make_logo_qr(string, logo, pic_name):
    # 参数配置
    qr = qrcode.QRCode(
        version = 4,
        error_correction = qrcode.constants.ERROR_CORRECT_Q,
        box_size = 8,
        border = 2
    )

    # 添加转换内容
    qr.add_data(string)
    #
    qr.make(fit = True)
    # 生成二维码
    img=qr.make_image()
    #
    img=img.convert("RGBA")
    # 添加logo
    if logo and os.path.exists(logo):
        icon = Image.open(logo)
        # 获取二维码图片的大小
        img_w, img_h = img.size
        factor = 4
        size_w = int(img_w/factor)
        size_h = int(img_h/factor)

        # logo图片的大小不能超过二维码图片的1/4
        icon_w, icon_h = icon.size
        if icon_w > size_w:
            icon_w = size_w
        if icon_h > size_h:
            icon_h = size_h
        icon = icon.resize((icon_w, icon_h), Image.ANTIALIAS)

        # 计算logo在二维码图中的位置
        w = int((img_w - icon_w) / 2)
        h = int((img_h - icon_h) / 2)
        icon = icon.convert("RGBA")
        img.paste(icon, (w, h), icon)

    # 保存处理后图片
    img.save(pic_name)
    openpic(pic_name) 

 

 

if __name__=='__main__':

    print 

    print "usage: input text, then input empty line to stop input"

    print "       or input q or nothing to stop the script!"

    print

    path = os.path.dirname(os.path.realpath(__file__))

    qrcode_pic = os.path.join(path, 'theqrcode.png') #生成后的保存文件

    logo = os.path.join(path, 'logo.png')  #logo图片

    string = "start"

    stop_strings = ["q", "exit", ""]

    while(1):

        string = raw_input("input:\n")

        if(string.strip() in stop_strings): break

        

        # 输入内容允许有空格

        while True:

            line = raw_input()

            if(line == ''): break

            else: string = string + "\n" + line

        

        #make_qr(string, qrcode_pic)

        make_logo_qr(string, logo, qrcode_pic)