tesseract_on_ami.txt

install python 
https://tecadmin.net/install-python-3-7-amazon-linux/

yum install gcc-c++

sudo yum install python-pip
sudo yum install python3-pip
-- install conda by https://linuxize.com/post/how-to-install-anaconda-on-centos-7/

conda install -c conda-forge poppler

activate source <optional: conda env>
pip install pdf2image
pip install pytesseract


sudo yum install autoconf aclocal automake
sudo yum install libtool
sudo yum install libjpeg-devel libpng-devel libtiff-devel zlib-devel
http://www.leptonica.org/source/leptonica-1.78.0.tar.gz
tar -zxvf leptonica-1.78.0.tar.gz
cd leptonica-1.78.0
./configure
make
sudo make install
cd ..
wget https://github.com/tesseract-ocr/tesseract/archive/3.04.00.tar.gz
tar -zxvf 3.04.00.tar.gz
cd tesseract-3.04.00/
./autogen.sh
./configure
make
sudo make install
sudo ldconfig

cd /usr/local/share/tessdata
sudo wget https://github.com/tesseract-ocr/tessdata/blob/master/eng.traineddata 
sudo wget https://github.com/tesseract-ocr/tessdata/blob/master/pl.traineddata 
export TESSDATA_PREFIX=/usr/local/share/
vi ~/.bash_profile
# Copy this line to the end: export TESSDATA_PREFIX=/usr/local/share/
# Verify:
tesseract --list-langs