python qrcode二维码生成与识别

import qrcode

# 二维码内容
data = "https://www.baidu.com"
# 生成二维码
img = qrcode.make(data=data)
# 直接显示二维码
img.show()
# 保存二维码为文件
# img.save("baidu.jpg")

import qrcode
# 实例化二维码生成类
qr = qrcode.QRCode(
    version=1,
    error_correction=qrcode.constants.ERROR_CORRECT_L,
    box_size=10,
    border=4,
)
# 设置二维码数据
data = "https://www.baidu.com"
qr.add_data(data=data)

# 启用二维码颜色设置
qr.make(fit=True)
img = qr.make_image(fill_color="green", back_color="white")

# 显示二维码
img.show()

import qrcode
from PIL import Image
import matplotlib.pyplot as plt


def getQRcode(data, file_name):
    qr = qrcode.QRCode(
        version=1,
        error_correction=qrcode.constants.ERROR_CORRECT_H,
        box_size=5,
        border=4,
    )

    # 添加数据
    qr.add_data(data)
    # 填充数据
    qr.make(fit=True)
    # 生成图片
    img = qr.make_image(fill_color="green", back_color="white")

    # 添加logo，打开logo照片
    icon = Image.open("logo.jpg")
    # 获取图片的宽高
    img_w, img_h = img.size
    # 参数设置logo的大小
    factor = 6
    size_w = int(img_w / factor)
    size_h = int(img_h / factor)
    icon_w, icon_h = icon.size
    if icon_w > size_w:
        icon_w = size_w
    if icon_h > size_h:
        icon_h = size_h
    # 重新设置logo的尺寸
    icon = icon.resize((icon_w, icon_h), Image.ANTIALIAS)
    # 得到画图的x，y坐标，居中显示
    w = int((img_w - icon_w) / 2)
    h = int((img_h - icon_h) / 2)
    # 黏贴logo照
    img.paste(icon, (w, h), mask=None)
    # 终端显示图片
    plt.imshow(img)
    plt.show()
    # 保存img
    img.save(file_name)
    return img


if __name__ == ‘__main__‘:
    getQRcode("世情薄，人情恶，雨送黄昏花易落。晓风干，泪痕残，欲笺心事，独语斜阑。"
              "难，难，难！人成各，今非昨，病魂常似秋千索。角声寒，夜阑珊，怕人寻问，咽泪装欢。瞒，瞒，瞒！", ‘my.png‘)

import pyzbar.pyzbar as pyzbar
from PIL import Image,ImageEnhance

‘‘‘
二维码识别
‘‘‘
image = "my.png"

img = Image.open(image)

#img = ImageEnhance.Brightness(img).enhance(2.0)#增加亮度

#img = ImageEnhance.Sharpness(img).enhance(17.0)#锐利化

#img = ImageEnhance.Contrast(img).enhance(4.0)#增加对比度

#img = img.convert(‘L‘)#灰度化

# img.show()

barcodes = pyzbar.decode(img)

for barcode in barcodes:
    barcodeData = barcode.data.decode("utf-8")
    print(barcodeData)