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CSFelix/qr_code_generator.py

Created December 16, 2020 18:49
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  1. CSFelix created this gist Dec 16, 2020.
    38 changes: 38 additions & 0 deletions qr_code_generator.py
    View file
    Original file line number Diff line number Diff line change
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    #!pip install pyqrcode
    #!pip install pillow

    import pyqrcode
    from PIL import Image

    def NewQRGenerator(string):
    """
    Generates a QR Code and save it in PNG format.
    How a logo will be insert in the code later, some information
    will be lost!! In order to prevent it, we use the 'High Redundancy
    Algorithm' that allows 30% of lost data that the QR Code will still
    work!!.
    Assintotic: O(1)
    """
    url = pyqrcode.QRCode(string, error='H')
    url.png('qr_code.png', scale=10)
    InsertLogo()


    def InsertLogo():
    """
    Insert a logo inside the QR Code and save the changes in
    PNG format.
    Assintotic: O(1)
    """
    qr_code = Image.open('qr_code.png')

    logo = Image.open('python_logo.png')
    box = (185, 185, 235, 235) # insert position
    qr_code.crop(box)
    region = logo
    region = region.resize((box[2] - box[0], box[3] - box[1]))
    qr_code.paste(region, box)

    qr_code.save('qr_code.png')

    NewQRGenerator("https://csfelix.github.io")