Centos7上安裝Tesseract-ocr.3.04

1、安裝leptonica1.7

wget http://www.leptonica.org/source/leptonica-1.74.4.tar.gz

tar -xzvf leptonica-1.74.4.tar.gz

cd leptonica-1.74.4

./configure --prefix=/usr/local/

make && make install

配置環境變量

配置環境
vim \etc\bashrc
加入

CPLUS_INCLUDE_PATH=$CPLUS_INCLUDE_PATH:/usr/local/include/

export CPLUS_INCLUDE_PATH

C_INCLUDE_PATH=$C_INCLUDE_PATH:/usr/local/leptonica/include/leptonica

export C_INCLUDE_PATH

LIBRARY_PATH=$LIBRARY_PATH:/usr/local/lib

export LIBRARY_PATH

TESSDATA_PREFIX=/home/test/tesseract

export TESSDATA_PREFIX

export LD_LIBRARY_PATH=$LD_LIBRARY_PAYT:/usr/local/lib

export LIBLEPT_HEADERSDIR=/usr/local/include

export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig

使配置生效最後刷新

source /etc/bashrc

2、安裝tesseract3.04-ocr

wget https://github.com/tesseract-ocr/tesseract/archive/3.04.zip

unzip 3.04.zip

cd tesseract-3.04/

./autogen.sh
./configure --with-extra-includes=/usr/local/include --with-extra-libraries=/usr/local/include
make && sudo make install

直至安裝成功。

備註：

如果出現如下錯誤，一般爲少了png和jpeg依賴庫

Error in findTiffCompression: function not present
Error in pixReadStreamTiff: function not present
Error in pixReadStream: tiff: no pix returned
Error in pixRead: pix not read
Unsupported image type.

先安裝依賴庫

yum install libjpeg-devel
yum install libpng-devel
然後再對leptonica進行重新編譯，問題一般就能解決

./configure
make
make install