Pre-Recognize Library - library with algorithms for improving OCR quality.

Last update: Dec 30, 2022

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Overview

PRLib - Pre-Recognition Library.

The main aim of the library - prepare image for recogntion. Image processing can really help to improve recognition quality.

Features:

Binarization (Global Otsu, Sauvola, Niblack, Adaptive)
Deskew
Denoise (Non-local Means Denoising algorithm)
Thinning (Zhang-Suen, Guo-Hall)
Blur detection (LAPM, LAPV, TENG, GLVN)
Deblur (Gaussian-based)
White balance (Simple, Grayworld)
Border detection (Canny-based)
Removing perspective warp
Crop

Dependencies: OpenCV + OpenCV contrib, Leptonica.

How to build:

Go to the directory with source code
Make directory for build:

    mkdir build

Run cmake:

    cmake ..

Run make:

    make

Owner

Alex

GitHub Repository

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