python 利用百度API识别图片文字(多线程版)

#!/usr/bin/env python3

# -*- coding: utf-8 -*-

"""

Created on Tue Jun 12 09:37:38 2018

利用百度api实现图片文本识别

@author: XnCSD

"""

import glob

from os import path

import os

from aip import AipOcr

from PIL import Image

from queue import Queue

import threading

import datetime

def convertimg(picfile, outdir):

'''调整图片大小,对于过大的图片进行压缩

picfile: 图片路径

outdir: 图片输出路径

'''

img = Image.open(picfile)

width, height = img.size

while (width * height > 4000000): # 该数值压缩后的图片大约 两百多k

width = width // 2

height = height // 2

new_img = img.resize((width, height), Image.BILINEAR)

new_img.save(path.join(outdir, os.path.basename(picfile)))

def baiduOCR(ts_queue):

"""利用百度api识别文本,并保存提取的文字

picfile: 图片文件名

outfile: 输出文件

"""

while not ts_queue.empty():

picfile = ts_queue.get()

filename = path.basename(picfile)

outfile = 'D:\Study\pythonProject\scrapy\IpProxy\port_zidian.txt'

APP_ID = '' # 刚才获取的 ID,下同

API_KEY = ''

SECRECT_KEY = ''

client = AipOcr(APP_ID, API_KEY, SECRECT_KEY)

i = open(picfile, 'rb')

img = i.read()

print("正在识别图片:\t" + filename)

message = client.basicGeneral(img) # 通用文字识别,每天 50 000 次免费

# message = client.basicAccurate(img) # 通用文字高精度识别,每天 800 次免费

#print("识别成功!")

i.close()

try:

filename1 = filename.split('.')[0]

filename1 = ''.join(filename1)

with open(outfile, 'a+') as fo:

for text in message.get('words_result'):

fo.writelines('\'' + filename1 + '\'' + ':' + text.get('words') + ',')

fo.writelines('\n')

# fo.writelines("+" * 60 + '\n')

# fo.writelines("识别图片:\t" + filename + "\n" * 2)

# fo.writelines("文本内容:\n")

# # 输出文本内容

# for text in message.get('words_result'):

# fo.writelines(text.get('words') + '\n')

# fo.writelines('\n' * 2)

os.remove(filename)

print("识别成功!")

except:

print('识别失败')

print("文本导出成功!")

print()

def duqu_tupian(dir):

ts_queue = Queue(10000)

outdir = dir

# if path.exists(outfile):

# os.remove(outfile)

if not path.exists(outdir):

os.mkdir(outdir)

print("压缩过大的图片...")

# 首先对过大的图片进行压缩,以提高识别速度,将压缩的图片保存与临时文件夹中

try:

for picfile in glob.glob(r"D:\Study\pythonProject\scrapy\IpProxy\端口\*"):

convertimg(picfile, outdir)

print("图片识别...")

for picfile in glob.glob("tmp/*"):

ts_queue.put(picfile)

#baiduOCR(picfile, outfile)

#os.remove(picfile)

print('图片文本提取结束!文本输出结果位于文件中。' )

#os.removedirs(outdir)

return ts_queue

except:

print('失败')

if __name__ == "__main__":

start = datetime.datetime.now().replace(microsecond=0)

t = 'tmp'

s = duqu_tupian(t)

threads = []

for i in range(100):

t = threading.Thread(target=baiduOCR, name='th-' + str(i), kwargs={'ts_queue': s})

threads.append(t)

for t in threads:

t.start()

for t in threads:

t.join()

end = datetime.datetime.now().replace(microsecond=0)

print('删除耗时:' + str(end - start))

速度快,准确率99百分,100里必回出错一张。

实测,识别1500张图片,还是小图片验证码大小,高清,用时30秒,不能识别150张,出错14张左右。  但总体快,不会出现乱码啥的。

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