All Projects → gzm1997 → Wximage

gzm1997 / Wximage

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itchat+pillow实现微信好友头像爬取和拼接


本项目github地址


###效果图

demo2

demo3

demo4


使用方法(前提是设备安装了python):

下载本项目到本地,打开项目主目录,打开命令行,输入:

pip install -r requirements.txt

等待安装完成,输入:

python wxImage.py

出现如下二维码:

二维码

用手机微信右上角的扫一扫,确认登陆即可。

稍等片刻,你打开手机微信,找到信息栏的微信传输助手,会看到如下:

微信文件传输助手


核心

python:

  • itchat(用于爬取头像)
  • pillow(用于拼接图片)

##源码详解

首先登陆python版本微信itchat,生成二维码:

itchat.auto_login(enableCmdQR=True)

获取好友列表:

friends = itchat.get_friends(update=True)[0:]

然后使用itchat的get_head_img(userName=none)函数来爬取好友列表的头像,并下载到本地:

num = 0

for i in friends:
	img = itchat.get_head_img(userName=i["UserName"])
	fileImage = open(user + "/" + str(num) + ".jpg",'wb')
	fileImage.write(img)
	fileImage.close()
	num += 1

计算出每张头像缩小后的尺寸(由于为了拼接之后可以用来作为为微信头像,所以合成的图片大小都是640 * 640的,因为微信头像大小就是640 * 640)

计算每张头像缩小后的边长(默认为正方形):

eachsize = int(math.sqrt(float(640 * 640) / numPic))

计算合成图片每一边分为多少小边:

numline = int(640 / eachsize)

缩小并拼接图片:

x = 0
y = 0

for i in pics:
	try:
		#打开图片
		img = Image.open(user + "/" + i)
	except IOError:
		print("Error: 没有找到文件或读取文件失败")
	else:
		#缩小图片
		img = img.resize((eachsize, eachsize), Image.ANTIALIAS)
		#拼接图片
		toImage.paste(img, (x * eachsize, y * eachsize))
		x += 1
		if x == numline:
			x = 0
			y += 1

保存图片到本地:

toImage.save(user + ".jpg")

在微信的文件传输助手发合成后的图片给使用者:

itchat.send_image(user + ".jpg", 'filehelper')

###完整代码(下载本人github项目会更好点):

from numpy import *
import itchat
import urllib
import requests
import os

import PIL.Image as Image
from os import listdir
import math

itchat.auto_login(enableCmdQR=True)

friends = itchat.get_friends(update=True)[0:]

user = friends[0]["UserName"]

print(user)

os.mkdir(user)

num = 0

for i in friends:
	img = itchat.get_head_img(userName=i["UserName"])
	fileImage = open(user + "/" + str(num) + ".jpg",'wb')
	fileImage.write(img)
	fileImage.close()
	num += 1

pics = listdir(user)

numPic = len(pics)

print(numPic)

eachsize = int(math.sqrt(float(640 * 640) / numPic))

print(eachsize)

numline = int(640 / eachsize)

toImage = Image.new('RGBA', (640, 640))


print(numline)

x = 0
y = 0

for i in pics:
	try:
		#打开图片
		img = Image.open(user + "/" + i)
	except IOError:
		print("Error: 没有找到文件或读取文件失败")
	else:
		#缩小图片
		img = img.resize((eachsize, eachsize), Image.ANTIALIAS)
		#拼接图片
		toImage.paste(img, (x * eachsize, y * eachsize))
		x += 1
		if x == numline:
			x = 0
			y += 1


toImage.save(user + ".jpg")


itchat.send_image(user + ".jpg", 'filehelper')




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