Tesseract OCR 中文识别尝试 Tesseract OCR 训练和识别总结

Install Tesseract OCR on Ubuntu 12.04 LTS

This is an installation guide for installing Tesseract OCR on Ubuntu 12.04 LTS.

First install the required libraries and tools for compiling.

sudo apt-get install libpng-dev libjpeg-dev libtiff-dev zlib1g-dev
sudo apt-get install gcc g++
sudo apt-get install autoconf automake libtool checkinstall

Install Leptonica from source. The latest version as of writing is 1.69.

wget http://www.leptonica.org/source/leptonica-1.69.tar.gz
tar -zxvf leptonica-1.69.tar.gz
cd leptonica-1.69
sudo checkinstall
sudo ldconfig

Then install Tesseract OCR from source.

wget https://tesseract-ocr.googlecode.com/files/tesseract-ocr-3.02.02.tar.gz
tar -zxvf tesseract-ocr-3.02.02.tar.gz
cd tesseract-ocr
make (this may take a while)
sudo make install
sudo ldconfig

Finally, install the languages you want. Simply place the trained data under /usr/local/share/tessdata. You can do this through wget or FTP upload.

Below are some miscellaneous notes.

If you wish to call Tesseract from PHP, try this:

shell_exec("/usr/local/bin/tesseract input.png output -l eng");

On a side note, in the rare case you are running MAMP and the above code fails, you should edit the environment variables in /Applications/MAMP/Library/bin/envvars. Comment out the following lines as such: