Как использовать (скомпилировать) Tesseract 4 на платформе Android (armv7 и arm64)

Question

В настоящее время я использую Tesseract 3 в приложении android (архитектуры armv7 и arm64). Но мне нужно перейти на Tesseract 4, чтобы использовать некоторые из его дополнительных функций. Как мне перейти на Tesseract 4?

Вот то, что я пробовал до сих пор:

1. compiling_on_terminal_or_androidStudio
2. compiling_using_ docker

Проблемы с этими подходами:

1. issue_with_terminal_approach
2. issue_with_docker_approach

Журнал ошибок:

D:\Kunal\tess_related\tess-backup\tess>gradlew assemble

> Task :eyes-two:generateJsonModelDebug FAILED
make: *** No rule to make target 'D:\Kunal\tess_related\tess-backup\tess\tess-two\build//intermediates/ndkBuild/debug/obj/local/armeabi-v7a/liblept.so', needed by 'D:/Kunal/tess_related/tess-backup/tess/eyes-two/build/intermediates/ndkBuild/debug/obj/local/armeabi-v7a/libhydrogen.so'.  Stop.
make: *** No rule to make target 'D:\Kunal\tess_related\tess-backup\tess\tess-two\build//intermediates/ndkBuild/debug/obj/local/arm64-v8a/liblept.so', needed by 'D:/Kunal/tess_related/tess-backup/tess/eyes-two/build/intermediates/ndkBuild/debug/obj/local/arm64-v8a/libhydrogen.so'.  Stop.
make: *** No rule to make target 'D:\Kunal\tess_related\tess-backup\tess\tess-two\build//intermediates/ndkBuild/debug/obj/local/x86/liblept.so', needed by 'D:/Kunal/tess_related/tess-backup/tess/eyes-two/build/intermediates/ndkBuild/debug/obj/local/x86/libhydrogen.so'.  Stop.
make: *** No rule to make target 'D:\Kunal\tess_related\tess-backup\tess\tess-two\build//intermediates/ndkBuild/debug/obj/local/x86_64/liblept.so', needed by 'D:/Kunal/tess_related/tess-backup/tess/eyes-two/build/intermediates/ndkBuild/debug/obj/local/x86_64/libhydrogen.so'.  Stop.

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':eyes-two:generateJsonModelDebug'.
> Build command failed.
Error while executing process C:\Users\Asus\AppData\Local\Android\Sdk\ndk-bundle\ndk-build.cmd with arguments {NDK_PROJECT_PATH=null APP_BUILD_SCRIPT=D:\Kunal\tess_related\tess-backup\tess\eyes-two\src\main\jni\Android.mk NDK_APPLICATION_MK=D:\Kunal\tess_related\tess-backup\tess\eyes-two\src\main\jni\Application.mk APP_ABI=armeabi-v7a NDK_ALL_ABIS=armeabi-v7a NDK_DEBUG=1 APP_PLATFORM=android-16 NDK_OUT=D:/Kunal/tess_related/tess-backup/tess/eyes-two/build/intermediates/ndkBuild/debug/obj NDK_LIBS_OUT=D:\Kunal\tess_related\tess-backup\tess\eyes-two\build\intermediates\ndkBuild\debug\lib TESSERACT_BUILD_PATH=D:\Kunal\tess_related\tess-backup\tess\tess-two\build APP_SHORT_COMMANDS=false LOCAL_SHORT_COMMANDS=false -B -n}
  md "D:\Kunal\tess_related\tess-backup\tess\eyes-two\build\intermediates\ndkBuild\debug\lib\armeabi-v7a" >NUL 2>NUL || rem
  C:/Users/Asus/AppData/Local/Android/Sdk/ndk-bundle/build//../prebuilt/windows-x86_64/bin/echo.exe [armeabi-v7a] "Gdbserver      ": "[arm-linux-androideabi] D:\Kunal\tess_related\tess-backup\tess\eyes-two\build\intermediates\ndkBuild\debug\lib/armeabi-v7a/gdbserver"
  copy /b/y "C:\Users\Asus\AppData\Local\Android\Sdk\ndk-bundle\build\\..\prebuilt\android-arm\gdbserver\gdbserver" "D:\Kunal\tess_related\tess-backup\tess\eyes-two\build\intermediates\ndkBuild\debug\lib\armeabi-v7a\gdbserver" > NUL
  C:/Users/Asus/AppData/Local/Android/Sdk/ndk-bundle/build//../prebuilt/windows-x86_64/bin/echo.exe [armeabi-v7a] "Gdbsetup       ": "D:\Kunal\tess_related\tess-backup\tess\eyes-two\build\intermediates\ndkBuild\debug\lib/armeabi-v7a/gdb.setup"
  C:/Users/Asus/AppData/Local/Android/Sdk/ndk-bundle/build//../prebuilt/windows-x86_64/bin/echo.exe "set solib-search-path D:/Kunal/tess_related/tess-backup/tess/eyes-two/build/intermediates/ndkBuild/debug/obj/local/armeabi-v7a" > D:\Kunal\tess_related\tess-backup\tess\eyes-two\build\intermediates\ndkBuild\debug\lib/armeabi-v7a/gdb.setup
  C:/Users/Asus/AppData/Local/Android/Sdk/ndk-bundle/build//../prebuilt/windows-x86_64/bin/echo.exe "directory C:/Users/Asus/AppData/Local/Android/Sdk/ndk-bundle/build//../toolchains/llvm/prebuilt/windows-x86_64/sysroot D:/Kunal/tess_related/tess-backup/tess/eyes-two/src/main/jni/common C:/Users/Asus/AppData/Local/Android/Sdk/ndk-bundle/build//../sources/android/cpufeatures D:/Kunal/tess_related/tess-backup/tess/eyes-two/src/main/jni/hydrogen/src D:\Kunal\tess_related\tess-backup\tess\tess-two\build/../../tess-two/jni/com_googlecode_leptonica_android D:\Kunal\tess_related\tess-backup\tess\tess-two\build/../../leptonica/src D:/Kunal/tess_related/tess-backup/tess/eyes-two/src/main/jni/imageutils/../common D:/Kunal/tess_related/tess-backup/tess/eyes-two/src/main/jni/opticalflow/../common" >> D:\Kunal\tess_related\tess-backup\tess\eyes-two\build\intermediates\ndkBuild\debug\lib/armeabi-v7a/gdb.setup
  md "D:\Kunal\tess_related\tess-backup\tess\eyes-two\build\intermediates\ndkBuild\debug\obj\local\armeabi-v7a\objs\hydrogen\src" >NUL 2>NUL || rem
  C:/Users/Asus/AppData/Local/Android/Sdk/ndk-bundle/build//../prebuilt/windows-x86_64/bin/echo.exe [armeabi-v7a] "Compile++ thumb": "hydrogen <= clusterer.cpp"
  C:/Users/Asus/AppData/Local/Android/Sdk/ndk-bundle/build//../toolchains/llvm/prebuilt/windows-x86_64/bin/clang++.exe -MMD -MP -MF D:/Kunal/tess_related/tess-backup/tess/eyes-two/build/intermediates/ndkBuild/debug/obj/local/armeabi-v7a/objs/hydrogen/src/clusterer.o.d -target armv7-none-linux-androideabi16 -fdata-sections -ffunction-sections -fstack-protector-strong -funwind-tables -no-canonical-prefixes  --sysroot C:/Users/Asus/AppData/Local/Android/Sdk/ndk-bundle/build//../toolchains/llvm/prebuilt/windows-x86_64/sysroot -g -Wno-invalid-command-line-argument -Wno-unused-command-line-argument  -D_FORTIFY_SOURCE=2 -fno-exceptions -fno-rtti -fpic -march=armv7-a -mthumb -Oz -DNDEBUG  -ID:/Kunal/tess_related/tess-backup/tess/eyes-two/src/main/jni/hydrogen/src -ID:\Kunal\tess_related\tess-backup\tess\tess-two\build/../../tess-two/jni/com_googlecode_leptonica_android -ID:\Kunal\tess_related\tess-backup\tess\tess-two\build/../../leptonica/src -ID:/Kunal/tess_related/tess-backup/tess/eyes-two/src/main/jni/hydrogen    -DANDROID  -Wno-error=format-security   -c  D:/Kunal/tess_related/tess-backup/tess/eyes-two/src/main/jni/hydrogen/src/clusterer.cpp -o D:/Kunal/tess_related/tess-backup/tess/eyes-two/build/intermediates/ndkBuild/debug/obj/local/armeabi-v7a/objs/hydrogen/src/clusterer.o
  C:/Users/Asus/AppData/Local/Android/Sdk/ndk-bundle/build//../prebuilt/windows-x86_64/bin/echo.exe [armeabi-v7a] "Compile++ thumb": "hydrogen <= hydrogentextdetector.cpp"
  C:/Users/Asus/AppData/Local/Android/Sdk/ndk-bundle/build//../toolchains/llvm/prebuilt/windows-x86_64/bin/clang++.exe -MMD -MP -MF D:/Kunal/tess_related/tess-backup/tess/eyes-two/build/intermediates/ndkBuild/debug/obj/local/armeabi-v7a/objs/hydrogen/src/hydrogentextdetector.o.d -target armv7-none-linux-androideabi16 -fdata-sections -ffunction-sections -fstack-protector-strong -funwind-tables -no-canonical-prefixes  --sysroot C:/Users/Asus/AppData/Local/Android/Sdk/ndk-bundle/build//../toolchains/llvm/prebuilt/windows-x86_64/sysroot -g -Wno-invalid-command-line-argument -Wno-unused-command-line-argument  -D_FORTIFY_SOURCE=2 -fno-exceptions -fno-rtti -fpic -march=armv7-a -mthumb -Oz -DNDEBUG  -ID:/Kunal/tess_related/tess-backup/tess/eyes-two/src/main/jni/hydrogen/src -ID:\Kunal\tess_related\tess-backup\tess\tess-two\build/../../tess-two/jni/com_googlecode_leptonica_android -ID:\Kunal\tess_related\tess-backup\tess\tess-two\build/../../leptonica/src -ID:/Kunal/tess_related/tess-backup/tess/eyes-two/src/main/jni/hydrogen    -DANDROID  -Wno-error=format-security   -c  D:/Kunal/tess_related/tess-backup/tess/eyes-two/src/main/jni/hydrogen/src/hydrogentextdetector.cpp -o D:/Kunal/tess_related/tess-backup/tess/eyes-two/build/intermediates/ndkBuild/debug/obj/local/armeabi-v7a/objs/hydrogen/src/hydrogentextdetector.o
  C:/Users/Asus/AppData/Local/Android/Sdk/ndk-bundle/build//../prebuilt/windows-x86_64/bin/echo.exe [armeabi-v7a] "Compile++ thumb": "hydrogen <= thresholder.cpp"
  C:/Users/Asus/AppData/Local/Android/Sdk/ndk-bundle/build//../toolchains/llvm/prebuilt/windows-x86_64/bin/clang++.exe -MMD -MP -MF D:/Kunal/tess_related/tess-backup/tess/eyes-two/build/intermediates/ndkBuild/debug/obj/local/armeabi-v7a/objs/hydrogen/src/thresholder.o.d -target armv7-none-linux-androideabi16 -fdata-sections -ffunction-sections -fstack-protector-strong -funwind-tables -no-canonical-prefixes  --sysroot C:/Users/Asus/AppData/Local/Android/Sdk/ndk-bundle/build//../toolchains/llvm/prebuilt/windows-x86_64/sysroot -g -Wno-invalid-command-line-argument -Wno-unused-command-line-argument  -D_FORTIFY_SOURCE=2 -fno-exceptions -fno-rtti -fpic -march=armv7-a -mthumb -Oz -DNDEBUG  -ID:/Kunal/tess_related/tess-backup/tess/eyes-two/src/main/jni/hydrogen/src -ID:\Kunal\tess_related\tess-backup\tess\tess-two\build/../../tess-two/jni/com_googlecode_leptonica_android -ID:\Kunal\tess_related\tess-backup\tess\tess-two\build/../../leptonica/src -ID:/Kunal/tess_related/tess-backup/tess/eyes-two/src/main/jni/hydrogen    -DANDROID  -Wno-error=format-security   -c  D:/Kunal/tess_related/tess-backup/tess/eyes-two/src/main/jni/hydrogen/src/thresholder.cpp -o D:/Kunal/tess_related/tess-backup/tess/eyes-two/build/intermediates/ndkBuild/debug/obj/local/armeabi-v7a/objs/hydrogen/src/thresholder.o
  C:/Users/Asus/AppData/Local/Android/Sdk/ndk-bundle/build//../prebuilt/windows-x86_64/bin/echo.exe [armeabi-v7a] "Compile++ thumb": "hydrogen <= utilities.cpp"
  C:/Users/Asus/AppData/Local/Android/Sdk/ndk-bundle/build//../toolchains/llvm/prebuilt/windows-x86_64/bin/clang++.exe -MMD -MP -MF D:/Kunal/tess_related/tess-backup/tess/eyes-two/build/intermediates/ndkBuild/debug/obj/local/armeabi-v7a/objs/hydrogen/src/utilities.o.d -target armv7-none-linux-androideabi16 -fdata-sections -ffunction-sections -fstack-protector-strong -funwind-tables -no-canonical-prefixes  --sysroot C:/Users/Asus/AppData/Local/Android/Sdk/ndk-bundle/build//../toolchains/llvm/prebuilt/windows-x86_64/sysroot -g -Wno-invalid-command-line-argument -Wno-unused-command-line-argument  -D_FORTIFY_SOURCE=2 -fno-exceptions -fno-rtti -fpic -march=armv7-a -mthumb -Oz -DNDEBUG  -ID:/Kunal/tess_related/tess-backup/tess/eyes-two/src/main/jni/hydrogen/src -ID:\Kunal\tess_related\tess-backup\tess\tess-two\build/../../tess-two/jni/com_googlecode_leptonica_android -ID:\Kunal\tess_related\tess-backup\tess\tess-two\build/../../leptonica/src -ID:/Kunal/tess_related/tess-backup/tess/eyes-two/src/main/jni/hydrogen    -DANDROID  -Wno-error=format-security   -c  D:/Kunal/tess_related/tess-backup/tess/eyes-two/src/main/jni/hydrogen/src/utilities.cpp -o D:/Kunal/tess_related/tess-backup/tess/eyes-two/build/intermediates/ndkBuild/debug/obj/local/armeabi-v7a/objs/hydrogen/src/utilities.o
  C:/Users/Asus/AppData/Local/Android/Sdk/ndk-bundle/build//../prebuilt/windows-x86_64/bin/echo.exe [armeabi-v7a] "Compile++ thumb": "hydrogen <= validator.cpp"
  C:/Users/Asus/AppData/Local/Android/Sdk/ndk-bundle/build//../toolchains/llvm/prebuilt/windows-x86_64/bin/clang++.exe -MMD -MP -MF D:/Kunal/tess_related/tess-backup/tess/eyes-two/build/intermediates/ndkBuild/debug/obj/local/armeabi-v7a/objs/hydrogen/src/validator.o.d -target armv7-none-linux-androideabi16 -fdata-sections -ffunction-sections -fstack-protector-strong -funwind-tables -no-canonical-prefixes  --sysroot C:/Users/Asus/AppData/Local/Android/Sdk/ndk-bundle/build//../toolchains/llvm/prebuilt/windows-x86_64/sysroot -g -Wno-invalid-command-line-argument -Wno-unused-command-line-argument  -D_FORTIFY_SOURCE=2 -fno-exceptions -fno-rtti -fpic -march=armv7-a -mthumb -Oz -DNDEBUG  -ID:/Kunal/tess_related/tess-backup/tess/eyes-two/src/main/jni/hydrogen/src -ID:\Kunal\tess_related\tess-backup\tess\tess-two\build/../../tess-two/jni/com_googlecode_leptonica_android -ID:\Kunal\tess_related\tess-backup\tess\tess-two\build/../../leptonica/src -ID:/Kunal/tess_related/tess-backup/tess/eyes-two/src/main/jni/hydrogen    -DANDROID  -Wno-error=format-security   -c  D:/Kunal/tess_related/tess-backup/tess/eyes-two/src/main/jni/hydrogen/src/validator.cpp -o D:/Kunal/tess_related/tess-backup/tess/eyes-two/build/intermediates/ndkBuild/debug/obj/local/armeabi-v7a/objs/hydrogen/src/validator.o
  md "D:\Kunal\tess_related\tess-backup\tess\eyes-two\build\intermediates\ndkBuild\debug\obj\local\armeabi-v7a\objs\hydrogen\jni" >NUL 2>NUL || rem
  C:/Users/Asus/AppData/Local/Android/Sdk/ndk-bundle/build//../prebuilt/windows-x86_64/bin/echo.exe [armeabi-v7a] "Compile++ thumb": "hydrogen <= hydrogentextdetector.cpp"
  C:/Users/Asus/AppData/Local/Android/Sdk/ndk-bundle/build//../toolchains/llvm/prebuilt/windows-x86_64/bin/clang++.exe -MMD -MP -MF D:/Kunal/tess_related/tess-backup/tess/eyes-two/build/intermediates/ndkBuild/debug/obj/local/armeabi-v7a/objs/hydrogen/jni/hydrogentextdetector.o.d -target armv7-none-linux-androideabi16 -fdata-sections -ffunction-sections -fstack-protector-strong -funwind-tables -no-canonical-prefixes  --sysroot C:/Users/Asus/AppData/Local/Android/Sdk/ndk-bundle/build//../toolchains/llvm/prebuilt/windows-x86_64/sysroot -g -Wno-invalid-command-line-argument -Wno-unused-command-line-argument  -D_FORTIFY_SOURCE=2 -fno-exceptions -fno-rtti -fpic -march=armv7-a -mthumb -Oz -DNDEBUG  -ID:/Kunal/tess_related/tess-backup/tess/eyes-two/src/main/jni/hydrogen/src -ID:\Kunal\tess_related\tess-backup\tess\tess-two\build/../../tess-two/jni/com_googlecode_leptonica_android -ID:\Kunal\tess_related\tess-backup\tess\tess-two\build/../../leptonica/src -ID:/Kunal/tess_related/tess-backup/tess/eyes-two/src/main/jni/hydrogen    -DANDROID  -Wno-error=format-security   -c  D:/Kunal/tess_related/tess-backup/tess/eyes-two/src/main/jni/hydrogen/jni/hydrogentextdetector.cpp -o D:/Kunal/tess_related/tess-backup/tess/eyes-two/build/intermediates/ndkBuild/debug/obj/local/armeabi-v7a/objs/hydrogen/jni/hydrogentextdetector.o
  C:/Users/Asus/AppData/Local/Android/Sdk/ndk-bundle/build//../prebuilt/windows-x86_64/bin/echo.exe [armeabi-v7a] "Compile++ thumb": "hydrogen <= thresholder.cpp"
  C:/Users/Asus/AppData/Local/Android/Sdk/ndk-bundle/build//../toolchains/llvm/prebuilt/windows-x86_64/bin/clang++.exe -MMD -MP -MF D:/Kunal/tess_related/tess-backup/tess/eyes-two/build/intermediates/ndkBuild/debug/obj/local/armeabi-v7a/objs/hydrogen/jni/thresholder.o.d -target armv7-none-linux-androideabi16 -fdata-sections -ffunction-sections -fstack-protector-strong -funwind-tables -no-canonical-prefixes  --sysroot C:/Users/Asus/AppData/Local/Android/Sdk/ndk-bundle/build//../toolchains/llvm/prebuilt/windows-x86_64/sysroot -g -Wno-invalid-command-line-argument -Wno-unused-command-line-argument  -D_FORTIFY_SOURCE=2 -fno-exceptions -fno-rtti -fpic -march=armv7-a -mthumb -Oz -DNDEBUG  -ID:/Kunal/tess_related/tess-backup/tess/eyes-two/src/main/jni/hydrogen/src -ID:\Kunal\tess_related\tess-backup\tess\tess-two\build/../../tess-two/jni/com_googlecode_leptonica_android -ID:\Kunal\tess_related\tess-backup\tess\tess-two\build/../../leptonica/src -ID:/Kunal/tess_related/tess-backup/tess/eyes-two/src/main/jni/hydrogen    -DANDROID  -Wno-error=format-security   -c  D:/Kunal/tess_related/tess-backup/tess/eyes-two/src/main/jni/hydrogen/jni/thresholder.cpp -o D:/Kunal/tess_related/tess-backup/tess/eyes-two/build/intermediates/ndkBuild/debug/obj/local/armeabi-v7a/objs/hydrogen/jni/thresholder.o
  C:/Users/Asus/AppData/Local/Android/Sdk/ndk-bundle/build//../prebuilt/windows-x86_64/bin/echo.exe [armeabi-v7a] "Compile++ thumb": "hydrogen <= jni.cpp"
  C:/Users/Asus/AppData/Local/Android/Sdk/ndk-bundle/build//../toolchains/llvm/prebuilt/windows-x86_64/bin/clang++.exe -MMD -MP -MF D:/Kunal/tess_related/tess-backup/tess/eyes-two/build/intermediates/ndkBuild/debug/obj/local/armeabi-v7a/objs/hydrogen/jni/jni.o.d -target armv7-none-linux-androideabi16 -fdata-sections -ffunction-sections -fstack-protector-strong -funwind-tables -no-canonical-prefixes  --sysroot C:/Users/Asus/AppData/Local/Android/Sdk/ndk-bundle/build//../toolchains/llvm/prebuilt/windows-x86_64/sysroot -g -Wno-invalid-command-line-argument -Wno-unused-command-line-argument  -D_FORTIFY_SOURCE=2 -fno-exceptions -fno-rtti -fpic -march=armv7-a -mthumb -Oz -DNDEBUG  -ID:/Kunal/tess_related/tess-backup/tess/eyes-two/src/main/jni/hydrogen/src -ID:\Kunal\tess_related\tess-backup\tess\tess-two\build/../../tess-two/jni/com_googlecode_leptonica_android -ID:\Kunal\tess_related\tess-backup\tess\tess-two\build/../../leptonica/src -ID:/Kunal/tess_related/tess-backup/tess/eyes-two/src/main/jni/hydrogen    -DANDROID  -Wno-error=format-security   -c  D:/Kunal/tess_related/tess-backup/tess/eyes-two/src/main/jni/hydrogen/jni/jni.cpp -o D:/Kunal/tess_related/tess-backup/tess/eyes-two/build/intermediates/ndkBuild/debug/obj/local/armeabi-v7a/objs/hydrogen/jni/jni.o
  md "D:\Kunal\tess_related\tess-backup\tess\eyes-two\build\intermediates\ndkBuild\debug\obj\local\armeabi-v7a" >NUL 2>NUL || rem

  make: *** No rule to make target 'D:\Kunal\tess_related\tess-backup\tess\tess-two\build//intermediates/ndkBuild/debug/obj/local/armeabi-v7a/liblept.so', needed by 'D:/Kunal/tess_related/tess-backup/tess/eyes-two/build/intermediates/ndkBuild/debug/obj/local/armeabi-v7a/libhydrogen.so'.  Stop.


* Try:
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Answer 1

Во-первых, не беспокойтесь об официальных документах, они не помогут.

Основной ресурс, которому нужно следовать: Tesseract_4_with_ Android

Использование Android Studio, следуйте инструкциям (как указано здесь ):

• Откройте этот проект в Android Studio
• Откройте панель Gradle, разверните Tesseract4Android / :tesseract4Android / Tasks / other и запустите assembleRelease

view_assembly_location_in_Android_Studio

(Примечание: некоторые шаги в android studio приостанавливаются несколько раз, поэтому обязательно подождите несколько минут перед переходом к следующему шагу, чтобы убедиться, что шаг был полностью выполнен)

Затем, после выполнения шагов, чтобы найти выходной файл, go через этот поток: get_output . Или просто go в каталог tesseract4android\build\outputs\aar. Здесь мы получаем файл .aar.

Теперь, чтобы получить файл libtesseract.so, нам сначала нужно распаковать файл aar ( how_to_unzip_aar_file ), а затем открыть папку jni для получения libtesseract.so и других файлов .so.

Примечание. Для получения подробной информации об этой проблеме см. this thread.

Дополнительная информация

Для компиляции Tesseract 4 для платформы iOS см. здесь