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flyapps/fir_ser/api/utils/app/raqc.py

91 lines
2.3 KiB

#!/usr/bin/env python
# -*- coding:utf-8 -*-
# project: 12月
# author: NinEveN
# date: 2019/12/19
'''
Python生成二维码 v1.0
主要将文本生成二维码图片
测试一将文本生成白底黑字的二维码图片
测试二将文本生成带logo的二维码图片
'''
import qrcode
from PIL import Image
import os
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# 生成二维码图片
def make_qr(str, save):
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(str)
qr.make(fit=True)
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img = qr.make_image()
img.save(save)
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# 生成带logo的二维码图片
def make_logo_qr(str, logo, save):
# 参数配置
qr = qrcode.QRCode(
version=4,
error_correction=qrcode.constants.ERROR_CORRECT_Q,
box_size=8,
border=2
)
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# 添加转换内容
qr.add_data(str)
#
qr.make(fit=True)
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# 生成二维码
img = qr.make_image()
#
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img = img.convert("RGBA")
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# 添加logo
if logo and os.path.exists(logo):
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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)
# 详见:http://pillow.readthedocs.org/handbook/tutorial.html
# 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)
# 详见:http://pillow.readthedocs.org/reference/Image.html#PIL.Image.Image.paste
# 保存处理后图片
img.save(save)
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if __name__ == '__main__':
save_path = 'base__runmethod_02.png' # 生成后的保存文件
logo = '/tmp/pycharm_project_986/fir/tmp/icon/cmjpwyltznbioseh' # logo图片
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str = "https://fir.im/luy4"
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make_logo_qr(str, logo, save_path)