# !/usr/bin/env python3
# -*- coding: UTF-8 -*-
"""
@author : v_jiaohaicheng@baidu.com
@des : 生成四位字符串验证码图片
（传入长度为四的验证码列表）
"""
import os
import random
from io import BytesIO
from PIL import Image
from PIL import ImageDraw
from PIL import ImageFont
class Verify():
def __init__(self):
pass
def random_color(self,nums=3):
random_num_lists = []
while nums > 0:
random_num = random.randint(0, 255)
random_num_lists.append(random_num)
nums -= 1
return tuple(random_num_lists)
def generate_picture(self,width=120, height=35):
image = Image.new('RGB', (width, height), self.random_color())
return image
def random_str(self):
'''
获取一个随机字符, 数字或小写字母
:return:
'''
random_num = str(random.randint(0, 9))
random_low_alpha = chr(random.randint(97, 122))
random_char = random.choice([random_num, random_low_alpha])
return random_char
def draw_str(self,count, image, font_size,rand_str_lis=[]):
"""
在图片上写随机字符
:param count: 字符数量
:param image: 图片对象
:param font_size: 字体大小
:return:
"""
draw = ImageDraw.Draw(image)
# 获取一个font字体对象参数是ttf的字体文件的目录，以及字体的大小
font_file = os.path.join(R"C:\Windows\Fonts\simkai.ttf")
font = ImageFont.truetype(font_file, size=font_size)
temp = []
for i in range(count):
random_char = str(rand_str_lis[i])
draw.text((10+i*30, -2), random_char, self.random_color(), font=font)
temp.append(random_char)
valid_str = "".join(temp)
return valid_str, image
def noise(self,image, width=120, height=35, line_count=3, point_count=20):
'''
:param image: 图片对象
:param width: 图片宽度
:param height: 图片高度
:param line_count: 线条数量
:param point_count: 点的数量
:return:
'''
draw = ImageDraw.Draw(image)
for i in range(line_count):
x1 = random.randint(0, width)
x2 = random.randint(0, width)
y1 = random.randint(0, height)
y2 = random.randint(0, height)
draw.line((x1, y1, x2, y2), fill=self.random_color())
# 画点
for i in range(point_count):
draw.point([random.randint(0, width), random.randint(0, height)], fill=self.random_color())
x = random.randint(0, width)
y = random.randint(0, height)
draw.arc((x, y, x + 4, y + 4), 0, 90, fill=self.random_color())
return image
def main(self,rand_str_lis):
image = self.generate_picture()
valid_str, image = self.draw_str(4, image, 35,rand_str_lis)
image = self.noise(image)
image.save('test.png')
f = BytesIO()
image.save(f, 'png') # 保存到BytesIO对象中, 格式为png
data = f.getvalue()
f.close()
return valid_str, data
if __name__ == '__main__':
vy = Verify()
rand_str_lis = ["1", "2", "3r", "2"]
verify,data = vy.main(rand_str_lis)
print(verify)
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