1、If they are not already installed, you need the following libraries (Ubuntu 16.04/14.04):
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sudo apt-get install autoconf automake libtool sudo apt-get install autoconf-archive sudo apt-get install pkg-config sudo apt-get install libpng12-dev sudo apt-get install libjpeg8-dev sudo apt-get install libtiff5-dev sudo apt-get install zlib1g-dev
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2、if you plan to install the training tools, you also need the following libraries:
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sudo apt-get install libicu-dev sudo apt-get install libpango1.0-dev sudo apt-get install libcairo2-dev
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3、install leptonica:
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git clone https://github.com/DanBloomberg/leptonica cd leptonica autoreconf -vi ./autobuild ./configure make make install
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4、install tesseract:
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git clone --depth 1 https://github.com/tesseract-ocr/tesseract.git cd tesseract ./autogen.sh ./configure --enable-debug LDFLAGS="-L/usr/local/lib" CFLAGS="-I/usr/local/include" make sudo make install sudo ldconfig
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5、install the training tools:
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make training sudo make training-install
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Now，You get the libtesseract.so and you can use it in your C++ programs.
If you have some question,welecome to comments!