Python 实现任意区域文字识别(OCR)操作

├── README.md
├── aip     //SDK目录
│ ├── __init__.py  //导出类
│ ├── base.py   //aip基类
│ ├── http.py   //http请求
│ └── ocr.py   //OCR
└── setup.py    //setuptools安装

import os # 操作系统相关
import sys # 系统相关
import time # 时间获取
import signal # 系统信号
import winsound # 提示音
from aip import AipOcr # 百度OCR API
from PIL import ImageGrab # 捕获剪切板中的图片
import win32clipboard as wc # WINDOWS 剪切板操作
import win32con # 这里用于获取 WINDOWS 剪贴板数据的标准格式

\"\"\" 你的 APPID AK SK \"\"\"
APP_ID = \'xxx\'
API_KEY = \'xxx\'
SECRET_KEY = \'xxx\'

client = AipOcr(APP_ID, API_KEY, SECRET_KEY)

\"\"\" 读取图片 \"\"\"
def get_file_content(filePath):
 with open(filePath, \'rb\') as fp:
  return fp.read()

\"\"\" 从API的返回字典中获取文字 \"\"\"
def getOcrText(txt_dict):
 txt = \"\"
 if type(txt_dict) == dict:
 for i in txt_dict[\'words_result\']:
 txt = txt + i[\"words\"]
 if len(i[\"words\"]) < 25: # 这里使用字符串长度决定了文本是否换行，读者可以根据自己的喜好控制回车符的输出，实现可控的文本显示形式
 txt = txt + \"\\n\\n\"
 return txt

\"\"\" 调用通用/高精度文字识别, 图片参数为本地图片 \"\"\"
def BaiduOcr(imageName,Accurate=True):
 image = get_file_content(imageName)
 if Accurate:
 return getOcrText(client.basicGeneral(image))
 else:
 return getOcrText(client.basicAccurate(image))
 
\"\"\" 带参数调用通用文字识别, 图片参数为远程url图片 \"\"\"
def BaiduOcrUrl(url): 
 return getOcrText(client.basicGeneralUrl(url))

\"\"\" 剪切板操作函数 \"\"\"
def get_clipboard():
 wc.OpenClipboard()
 txt = wc.GetClipboardData(win32con.CF_UNICODETEXT)
 wc.CloseClipboard()
 return txt

def empty_clipboard():
 wc.OpenClipboard()
 wc.EmptyClipboard()
 wc.CloseClipboard()

def set_clipboard(txt):
 wc.OpenClipboard()
 wc.EmptyClipboard()
 wc.SetClipboardData(win32con.CF_UNICODETEXT, txt)
 wc.CloseClipboard()
 
\"\"\" 截图后,调用通用/高精度文字识别\"\"\"
def BaiduOcrScreenshots(Accurate=True,path=\"./\",ifauto=False):
 if not os.path.exists(path):
 os.makedirs(path)
 image = ImageGrab.grabclipboard()
 if image != None:
 print(\"\\rThe image has been obtained. Please wait a moment!\",end=\" \")
 filename = str(time.time_ns())
 image.save(path+filename+\".png\")
 if Accurate:
 txt = getOcrText(client.basicAccurate(get_file_content(path+filename+\".png\")))
 else: 
 txt = getOcrText(client.basicGeneral(get_file_content(path+filename+\".png\")))
 os.remove(path+filename+\".png\")
 # f = open(os.path.abspath(path)+\"\\\\\"+filename+\".txt\",\'w\')
 # f.write(txt)
 set_clipboard(txt)
 winsound.PlaySound(\'SystemAsterisk\',winsound.SND_ASYNC)
 # os.startfile(os.path.abspath(path)+\"\\\\\"+filename+\".txt\")
 # empty_clipboard()
 return txt
 else :
 if not ifauto:
 print(\"Please get the screenshots by Shift+Win+S!  \",end=\"\")
 return \"\"
 else:
 print(\"\\rPlease get the screenshots by Shift+Win+S !  \",end=\"\")

def sig_handler(signum, frame):
 sys.exit(0)
 
def removeTempFile(file = [\".txt\",\".png\"],path=\"./\"):
 if not os.path.exists(path):
 os.makedirs(path)
 pathDir = os.listdir(path)
 for i in pathDir:
 for j in file:
 if j in i:
 os.remove(path+i)

def AutoOcrFile(path=\"./\",filetype=[\".png\",\".jpg\",\".bmp\"]):
 if not os.path.exists(path):
 os.makedirs(path)
 pathDir = os.listdir(path)
 for i in pathDir:
 for j in filetype:
 if j in i:
 f = open(os.path.abspath(path)+\"\\\\\"+str(time.time_ns())+\".txt\",\'w\')
 f.write(BaiduOcr(path+i))
 break

def AutoOcrScreenshots():
 signal.signal(signal.SIGINT, sig_handler)
 signal.signal(signal.SIGTERM, sig_handler)
 print(\"Waiting For Ctrl+C to exit ater removing all picture files and txt files!\")
 print(\"Please get the screenshots by Shift+Win+S !\",end=\"\")
 while(1):
 try:
 BaiduOcrScreenshots(ifauto=True)
 time.sleep(0.1)
 except SystemExit:
 removeTempFile()
 break
 else :
 pass
 finally:
 pass

if __name__ == \'__main__\':
 AutoOcrScreenshots()

brew install tesseract

pip install pytesseract

#!/usr/bin/env python3
# -*- coding: utf-8 -*-

import pytesseract
from PIL import Image

# open image
image = Image.open(\'test.png\')
code = pytesseract.image_to_string(image, lang=\'chi_sim\')
print(code)