#coding:utf8

import re

import urllib

import urllib2

import requests

from PIL import Image

import numpy as np

def downloads_pic(**kwargs):

    pic_name = kwargs.get('pic_name', None)

    url = 'http://www.xxx.com/code.do'

    res = requests.get(url, stream=True)

    with open(pic_path +'test11.bmp', 'wb') as f:

        for chunk in res.iter_content(chunk_size=1024):

            if chunk:  # filter out keep-alive new chunks

                f.write(chunk)

                f.flush()

        f.close()

pic_path='tmp\\'

downloads_pic()

image = Image.open('tmp\\test.bmp')

#image.show() #显示图片

imgry = image.convert('L')  # 转化为灰度图 1:背景黑白