使用python+pytesseract实现图片中文字的识别

一.安装tesseract

1.下载链接

https://digi.bib.uni-mannheim.de/tesseract/

2.网盘下载地址

链接：https://pan.baidu.com/s/1CLPSf2TahIGaeL7zRCTQDg
提取码：x0kn

3.配置环境变量

3.1配置TESSDATA_PREFIX变量

3.2配置Path变量

4.验证是否安装成功：

C:\Users\特昂糖>tesseract -v
tesseract 4.00.00alpha
 leptonica-1.74.1
  libgif 4.1.6(?) : libjpeg 8d (libjpeg-turbo 1.5.0) : libpng 1.6.20 : libtiff 4.0.6 : zlib 1.2.8 : libwebp 0.4.3 : libopenjp2 2.1.0

5.命令行使用 tesseract --list-langs命令可查看当前软件支持的语言

C:\Users\特昂糖> tesseract --list-langs
List of available languages (2):
eng
osd

6.拓展语言包

到https://github.com/tesseract-ocr/tessdata下载需要的的语言包，如下图，红框内为中文简体语言包，下载后将该包直接放在程序安装目录的tessdata文件夹里面即可。

二.安装pytesseract

安装命令：pip install pytesseract

C:\特昂糖>pip install pytesseract
WARNING: Ignoring invalid distribution -ip (f:\python3\lib\site-packages)
WARNING: Ignoring invalid distribution -ip (f:\python3\lib\site-packages)
Collecting pytesseract
  Using cached pytesseract-0.3.9-py2.py3-none-any.whl (14 kB)
Collecting Pillow>=8.0.0
  Downloading Pillow-9.1.0-cp39-cp39-win_amd64.whl (3.3 MB)
     ---------------------------------------- 0.0/3.3 MB ? eta -:--:--
ERROR: Operation cancelled by user
WARNING: Ignoring invalid distribution -ip (f:\python3\lib\site-packages)
WARNING: Ignoring invalid distribution -ip (f:\python3\lib\site-packages)

因为网络缘故下载不下来，用国内的源下载：

C:\Users\特昂糖>pip install pytesseract -i https://pypi.douban.com/simple
WARNING: Ignoring invalid distribution -ip (f:\python3\lib\site-packages)
WARNING: Ignoring invalid distribution -ip (f:\python3\lib\site-packages)
Looking in indexes: https://pypi.douban.com/simple
Collecting pytesseract
  Downloading https://pypi.doubanio.com/packages/8b/0d/6efe2a9bddf1b1efe82a86fdd057f4affaeebd14347f32d03bbbbc45821c/pytesseract-0.3.9-py2.py3-none-any.whl (14 kB)
Collecting Pillow>=8.0.0
  Downloading https://pypi.doubanio.com/packages/a1/ce/d3bf90ccf0c32dfd24ab88d8aaa84fb7c08a339803ed679d809b92a3e41a/Pillow-9.1.0-cp39-cp39-win_amd64.whl (3.3 MB)
     ---------------------------------------- 3.3/3.3 MB 3.2 MB/s eta 0:00:00
Requirement already satisfied: packaging>=21.3 in f:\python3\lib\site-packages (from pytesseract) (21.3)
Requirement already satisfied: pyparsing!=3.0.5,>=2.0.2 in f:\python3\lib\site-packages (from packaging>=21.3->pytesseract) (3.0.6)
WARNING: Ignoring invalid distribution -ip (f:\python3\lib\site-packages)
Installing collected packages: Pillow, pytesseract
WARNING: Ignoring invalid distribution -ip (f:\python3\lib\site-packages)
WARNING: Ignoring invalid distribution -ip (f:\python3\lib\site-packages)
Successfully installed Pillow-9.1.0 pytesseract-0.3.9
WARNING: Ignoring invalid distribution -ip (f:\python3\lib\site-packages)
WARNING: Ignoring invalid distribution -ip (f:\python3\lib\site-packages)

三.python代码

import pytesseract
from PIL import Image

file=r'F:/png/db63fc936bb07673a375423ce2d2cf8.png'
image=Image.open(file)
print(pytesseract.image_to_string(image,lang='chi_sim'))

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输出结果：

元 日

王 安 石 ( 宋 代

爆 竹 声 中 一 岁 除 , 春 风 送 暖 入 属 苏 。
干 门 万 户 瞳 嘻 日 , 总 把 新 桃 换 旧 符 。