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README

This repository contains text-recognition scripts. They are updates/revisions of the codes described in the following books:

• Nagata and Toyosawa: 実践OpenCV 4 for Python 画像映像情報処理と機械学習, Cutt System, Jan 2021.
• Nagata and Toyosawa: 実践OpenCV 3 for C++ 画像映像情報処理, Cutt System, Sep 2017.
• Kuwai, Toyosawa and Nagata: 実践OpenCV 2.4 for Pythonー映像処理&解析, Cutt System, Jul 2014.

Table of contents

• MNIST handwritten numbers recognition
• East text detector
• Image tilt adjustment using Hough transformation

Requirements

You need Python (naturally) and the following libraries.

pip install tensorflow                                   # Tensorflow/Keras.
pip install opencv-python                                # OpenCV for Python.
pip intall numpy                                         # It usually comes with OpenCV.
pip install pillow                                       # Used in MNIST.
pip instll imutils                                       # Used in EAST.