ocr-translator

README

ocr-translator

THIS PROJECT IS STILL UNDER DEVELOPMENT

Dependencies

• libleptonica
• libtesseract

Build

Linux

Arch:

pacman -S leptonica
pacman -S tesseract

Additionally, you should install training data corresponding to the language you want to use for tesseract. For example

English:

pacman -S tesseract-data-eng

Japanese:

pacman -S tesseract-data-jpn
pacman -S tesseract-data-jpn_vert

Then return to the root of the project and run:

go build .

NOTE: Screenshot on linux is unstable to use. You may write scanner.Scanner yourself on linux platform.

Windows

It's little tricky to install dependencies on Windows. Because this project uses cgo to call tesseract and leptonica functions, we should use MinGW as cgo compiler.

We recommend that use MSYS2 to install MinGW and other dependencies, so that we have no necessary to build tesseract and leptonica from source.

After MSYS2 is installed, open MSYS2 MinGW 64-bit shell and:

Install compile environment.

pacman -S base-devel msys2-devel mingw-w64-x86_64-toolchain git

Install dependencies for tesseract and leptonica.

pacman -S mingw-w64-x86_64-asciidoc mingw-w64-x86_64-cairo mingw-w64-x86_64-curl mingw-w64-x86_64-icu mingw-w64-x86_64-leptonica mingw-w64-x86_64-libarchive mingw-w64-x86_64-pango mingw-w64-x86_64-zlib mingw-w64-x86_64-autotools mingw-w64-x86_64-cmake

Install tesseract and leptonica.

pacman -S mingw-w64-x86_64-leptonica
pacman -S mingw-w64-x86_64-tesseract-ocr

You could install training data for tesseract as mentioned in the Linux section.

Set Windows environment variables:

• Set MinGW path to PATH environment variable. Concretely, add YOUR_MSYS2_PATH\mingw64\bin to Windows environment variables PATH.
• Set Windows environment variables TESSDATA_PREFIX to YOUR_MSYS2_PATH\mingw64\share\tessdata.

Then return to the root of the project and run:

go build .

Usage

Write config file, here's an example:

ocr:
  type: tesseract
  scan-delay: 2000
  lang:
    - jpn
    - eng
translators:
  - type: google
    api: YOUR_GOOGLEAPI_KEY
    target: zh-chs
    source: ja
    socks5: "127.0.0.1:8888"