python实战演练之python查看网络密码

from PIL import Imagefrom pyzbar import pyzbardef scan_qr_code(image_path, threshold=150):    image = Image.open(image_path)  # 将二进制转为PIL格式图片    # 将图像转换为灰度图    gray_image = image.convert('L')    # 将灰度图转换为二值图    binary_image1 = gray_image.point(lambda x: 0 if x < threshold else 255, '1')    binary_image2 = gray_image.point(lambda x: 255 if x < threshold else 0, '1')    for i in binary_image1, binary_image2:        barcodes = pyzbar.decode(i)        if barcodes:            for barcode in barcodes:                barcode_data = barcode.data.decode("utf-8")                return barcode_data    else:        return '扫码失败'print(scan_qr_code('qr.jpg'))

pip install pyzbar