Python3 比较两个图片是否类似或相同

　　Python代码

#coding:utf8
import os
from PIL import Image,ImageDraw,ImageFile
import numpy
import pytesseract
import cv2
import imagehash
import collections

def compare_image_with_hash(self,image_file1="D:\work\python36_crawl\Veriycode\mode_5246_1.png",
image_file2="D:\work\python36_crawl\Veriycode\mode_5246_2.png", max_dif=0):
"""
max_dif: 允许最大hash差值, 越小越精确,最小为0
推荐使用
"""
ImageFile.LOAD_TRUNCATED_IMAGES = True
hash_1 = None
hash_2 = None
with open(image_file1, 'rb') as fp:
hash_1 = imagehash.average_hash(Image.open(fp))
print(hash_1)
with open(image_file2, 'rb') as fp:
hash_2 = imagehash.average_hash(Image.open(fp))
print(hash_2)
dif = hash_1 - hash_2
print(dif)
if dif < 0:
dif = -dif
if dif <= max_dif:
return True
else:
return False