- install git-lfs
git pull && git lfs pull
- install Android NDK
- build standalone toolchains for x86 and x86_64
/opt/android-ndk/build/tools/make_standalone_toolchain.py --arch x86 --api 16 --install-dir=/opt/android-ndk-x86/opt/android-ndk/build/tools/make_standalone_toolchain.py --arch x86_64 --api 21 --install-dir=/opt/android-ndk-x86_64- build anlog
cd anlog && ndk-build- build msocrw
cd msocrw && ndk-build- build nodeocr (requires standalone toolchains created above)
cd nodeocr/jni && make
- Extract android-x86_64 rootfs from http://www.android-x86.org/download
- rpm2cpio - system.sfs - system.img - /{bin,xbin,lib,lib64,etc,usr}
ln -s /system /- create /proc, /sys, /dev, ...
- Copy this directory after compiling to /ocr under rootfs
- Enter rootfs
systemd-nspawn(debian package insystemd-container)cd /ocrLD_PRELOAD=anlog/libs/x86_64/libanlog.so LD_LIBRARY_PATH=mslib/x86_64:msocrw/libs/x86_64:opencv/sdk/native/libs/x86_64:zxing/lib/x86_64 node/x86_64/bin/node
const ocr = require("/ocr/nodeocr/libs/x86_64/nodeocr"); // node module path
console.log(ocr);
ocr.init('/ocr/res'); // MsOcrRes.orp directory
const fs = require('fs');
const buf = fs.readFileSync('/example.jpg');
const res = ocr.recognize_image(buf);
console.log(res);