verify_image.py 文件源码

def generate_verify_image(font_path):
    """
    ???????
    :param font_path: ???????????
    :return: ????????base64?????
    """
    width = 60 * 4
    height = 60
    image = Image.new('RGB', (width, height), (255, 255, 255))
    # ??Font??:
    font = ImageFont.truetype(font_path, 36)
    # ??Draw??:
    draw = ImageDraw.Draw(image)
    # ??????:
    for x in range(width):
        for y in range(height):
            draw.point((x, y), fill=rand_background_color())

    # ????:
    rand_str = rand_char()
    rand_str += rand_char()
    rand_str += rand_char()
    rand_str += rand_char()
    for t in range(4):
        draw.text((60 * t + 10, 10), rand_str[t], font=font, fill=rand_text_color())

    # ??:
    image = image.filter(ImageFilter.BLUR)

    file_name = './static/img/' + str(time.time())
    file_name += '.jpg'
    image.save(file_name, 'jpeg')

    f = open(file_name, 'rb')
    str_image = b'data:image/jpeg;base64,'
    str_image += base64.b64encode(f.read())
    f.close()
    os.remove(file_name)

    return rand_str, bytes.decode(str_image)