Install OpenCV with Tesseract on Windows

This guide will take you through the very easy installation steps for OpenCV with Tesseract on Windows.

Tools	URL with version
OS	Windows 10
Installation Tool	GitBash
Visual Studio	Visual Studio 15 2017 Win64
OpenCV	OpenCV 4.0.1
Libpng	libpng1636
Zlib	zlib1211
Leptonica	Leptonica version 1.74.4
Tesseract	Tesseract 4.0.0 Release

Step 1: Clone this Repo

Install Git Bash for windows if you haven't yet.

Open GitBash and Clone this repo. Lets clone in C drive.

cd /C/
git clone https://github.com/ghimiredhikura/Install-OpenCV-with-Tesseract-Windows.git 
cd Install-OpenCV-with-Tesseract-Windows

Step 2: Install OpenCV

./installOCV.sh

Step 3: Install llpng and zlib

You must download png lib and zlib. Uncompress lpng in folder lpng and zlib in folder zlib. lpng and zlib must be in same folder as opencv and opencv_contrib.

./installpngzlib.sh

Step 4: Install leptonica

./installLaptonica.sh

Step 5: Install Tesseract with OpenCV

./installTesseract.sh

Visual Studio 15 2017 Example (Not yet completed!):

Open OCVTessExample project using visual studio 2017. In Bin folder I have kept eng.tessdata file inside folder tessdata which was downloaded form https://github.com/tesseract-ocr/tessdata. You can also get any language pack that you are interested in. Just download and keep inside the tessdata. You may need to change c++ source accordingly. Compile the project.

Test

move to OCVTessExample/Bin>
double click run.sh 

Issue

#1
TODO

References

1. OpenCV (master) installation by using git-bash
2. Tesseract (master) installation by using git-bash
3. Deep Learning based Text Recognition (OCR) using Tesseract and OpenCV