Cómo instalar pytasseract en RPI
sudo apt-get install python-distutils-extra tesseract-ocr tesseract-ocr-eng libopencv-dev libtesseract-dev libleptonica-dev python-all-dev swig libcv-dev python-opencv python-numpy python-setuptools build-essential subversion
sudo apt-get install tesseract-ocr-eng tesseract-ocr-dev libleptonica-dev python-all-dev swig libcv-dev
sudo svn checkout http://python-tesseract.googlecode.com/svn/python-tesseract-0.7.4/
sudo python setup.py build
sudo python setup.py install
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