mac 安装tesseract与pytesseract使用

tesseract安装配置

安装依赖

brew install automake autoconf libtool
brew install pkgconfig
brew install icu4c
brew install leptonica

# Packages required for training tools.
brew install pango

# Optional packages for extra features.
brew install libarchive

# Optional package for builds using g++.
brew install gcc

下载解压tesseract

tesseract

编译安装

cd tesseract-4.1.1
./autogen.sh
mkdir build
cd build

# Optionally add CXX=g++-8 to the configure command if you really want to use a different compiler.
../configure PKG_CONFIG_PATH=/usr/local/opt/icu4c/lib/pkgconfig:/usr/local/opt/libarchive/lib/pkgconfig:/usr/local/opt/libffi/lib/pkgconfig
make -j

# Optionally install Tesseract.
sudo make install

# Optionally build and install training tools.
make training
sudo make training-install

下载eng.traineddata

eng.traineddata
这里只要下载其中的eng.traineddata就行了，如果需要其他的语言则按需下载，不需要全部都下载了，全部下载的话3g左右，比较大。

测试

$ tesseract 0384.jpg stdout
0 3 8 4

看报错路径，把eng.traineddata文件拷贝到缺失路径下，再次测试

pytesseract使用

参考

依赖包安装

pip install pytesseract

导入使用

import pytesseract as pt
from PIL import Image
image = Image.open('0384.jpeg')
text = pt.image_to_string(image)
print(text)