添加的tesseract和OpenCV到Android.mk（Android的工作室） [英] Adding Tesseract and Opencv to Android.mk (Android Studio)
问题描述
我也跟着从<一的说明href=\"http://hujiaweibujidao.github.io/blog/2014/10/22/android-ndk-and-opencv-development-with-android-studio/\"相对=nofollow>这里并添加OpenCV的成功。但我一直在努力的tesseract现在添加到Android.mk为好，几天了，还没有能够做到这一点。
我有一个的 android.cpp 的使用的tesseract所以我要包括我Android.mk的依赖。我发现<一个href=\"http://stackoverflow.com/questions/23965907/how-to-use-android-tesseract-android-mk-files-in-my-android-mk\">this帖子这几乎确切的问题，他解决了进口的 libtess.so 的和的 liblept.so 的文件到Android.mk，但并没有解释如何做到这一点，所以我看了一下，发现<一个href=\"http://stackoverflow.com/questions/9870435/how-can-i-link-$p$pbuilt-shared-library-to-android-ndk-project/9922835#9922835\">this帖子显示如何链接prebuilt库。因此，基于我尝试这样Android.mk：
LOCAL_PATH：= $（叫我-DIR）包括$（CLEAR_VARS）
LOCAL_MODULE：= liblept
LOCAL_SRC_FILES：= ../libs/$(TARGET_ARCH_ABI)/liblept.so
LOCAL_EXPORT_C_INCLUDES：= $（LOCAL_PATH）/../../../../苔丝个/ JNI
包括$（preBUILT_SHARED_LIBRARY）包括$（CLEAR_VARS）
LOCAL_MODULE：= libtess
LOCAL_SRC_FILES：= ../libs/$(TARGET_ARCH_ABI)/libtess.so
LOCAL_EXPORT_C_INCLUDES：= $（LOCAL_PATH）/../../../../苔丝个/ JNI
包括$（preBUILT_SHARED_LIBRARY）包括$（CLEAR_VARS）
OPENCV_PACKAGE_DIR：= /Users/danielsierraf/Documents/OpenCV-2.4.10-android-sdk/sdk
OPENCV_CAMERA_MODULES：=关闭
包括$（OPENCV_PACKAGE_DIR）/native/jni/OpenCV.mkLOCAL_MODULE：= run_detection
LOCAL_SHARED_LIBRARIES：= libtess
LOCAL_SRC_FILES：= text_detect.cpp android.cpp
LOCAL_LDLIBS + = -landroid -llog -ldl包括$（BUILD_SHARED_LIBRARY）
和得到这个输出：
[armeabi-V7A] prebuilt：liblept.so＆LT; =的src / main / JNI /../库/ armeabi-V7A /
[armeabi-V7A]安装：liblept.so =＆GT;在src / main / jniLibs / armeabi-V7A / liblept.so
[armeabi-V7A] ++编译大拇指：run_detection＆LT; = text_detect.cpp
在从文件的src /主要包括/ JNI / text_detect.h：4：0，
从的src / main / JNI / text_detect.cpp：10：
在src / main / JNI /../../../../苔丝个/ JNI / com_google code_tesseract_android / src目录/ API / baseapi.h：32：22：致命错误：platform.h：无这样的文件或目录
＃包括platform.h
^
编译终止。
所以我想没有正确连接libtess，如果你仔细观察，它不会永远安装libtess.so，它看起来像它安装的 liblept.so 的，然后跳转到的 text_detect.cpp 的，忽略这一部分：
包含$（CLEAR_VARS）
LOCAL_MODULE：= libtess
LOCAL_SRC_FILES：= ../libs/$(TARGET_ARCH_ABI)/libtess.so
LOCAL_EXPORT_C_INCLUDES：= $（LOCAL_PATH）/../../../../苔丝个/ JNI
包括$（preBUILT_SHARED_LIBRARY）
于是，我就迫使它安装的 liblept 的和的 libtess 的完全将它放在不同的文件然后再继续。所以，我把文件的最后部分在不同的Android.mk在另一个文件夹，并试图的包括$（调用所有子目录，makefile文件）的，然后将其安装的 libtess 的和 liblept 的彻底，但忽略的呼吁所有子目录，makefile文件的。
新的JNI的文件夹结构：
Android.mk
Application.mk
text_detect /
Android.mk
android.cpp
text_detect.cpp
text_detect.h
Android.mk
LOCAL_PATH：= $（叫我-DIR）包括$（CLEAR_VARS）
LOCAL_MODULE：= liblept
LOCAL_SRC_FILES：= ../libs/$(TARGET_ARCH_ABI)/liblept.so
LOCAL_EXPORT_C_INCLUDES：= $（LOCAL_PATH）/../../../../苔丝个/ JNI
包括$（preBUILT_SHARED_LIBRARY）包括$（CLEAR_VARS）
LOCAL_MODULE：= libtess
LOCAL_SRC_FILES：= ../libs/$(TARGET_ARCH_ABI)/libtess.so
LOCAL_EXPORT_C_INCLUDES：= $（LOCAL_PATH）/../../../../苔丝个/ JNI
包括$（preBUILT_SHARED_LIBRARY）包括$（调用所有子目录，makefile文件）
textdetect / Android.mk
LOCAL_PATH：= $（叫我-DIR）包括$（CLEAR_VARS）OPENCV_PACKAGE_DIR：= /Users/danielsierraf/Documents/OpenCV-2.4.10-android-sdk/sdk
OPENCV_CAMERA_MODULES：=关闭
包括$（OPENCV_PACKAGE_DIR）/native/jni/OpenCV.mkLOCAL_MODULE：= run_detection
LOCAL_SHARED_LIBRARIES：= libtess
LOCAL_SRC_FILES：= text_detect.cpp android.cpp
LOCAL_LDLIBS + = -landroid -llog -ldl包括$（BUILD_SHARED_LIBRARY）
这是输出：
[armeabi-V7A] prebuilt：liblept.so＆LT; =的src / main / JNI /../库/ armeabi-V7A /
[armeabi-V7A]安装：liblept.so =＆GT;在src / main / jniLibs / armeabi-V7A / liblept.so
[armeabi-V7A] prebuilt：libtess.so＆LT; =的src / main / JNI /../库/ armeabi-V7A /
[armeabi-V7A]安装：libtess.so =＆GT;在src / main / jniLibs / armeabi-V7A / libtess.so
[armeabi] prebuilt：liblept.so＆LT; =的src / main / JNI /../库/ armeabi /
[armeabi]安装：liblept.so =＆GT;在src / main / jniLibs / armeabi / liblept.so
[armeabi] prebuilt：libtess.so＆LT; =的src / main / JNI /../库/ armeabi /
[armeabi]安装：libtess.so =＆GT;在src / main / jniLibs / armeabi / libtess.so
[MIPS] prebuilt：liblept.so＆LT; =的src / main / JNI /../库/ MIPS /
[MIPS]安装：liblept.so =＆GT;在src / main / jniLibs / MIPS / liblept.so
[MIPS] prebuilt：libtess.so＆LT; =的src / main / JNI /../库/ MIPS /
[MIPS]安装：libtess.so =＆GT;在src / main / jniLibs / MIPS / libtess.so
[86] prebuilt：liblept.so＆LT; =的src / main / JNI /../库/ 86 /
[86]安装：liblept.so =＆GT;在src / main / jniLibs / 86 / liblept.so
[86] prebuilt：libtess.so＆LT; =的src / main / JNI /../库/ 86 /
[86]安装：libtess.so =＆GT;在src / main / jniLibs / 86 / libtess.so
当你看到它安装了从第一Android.mk完美，但它从来没有运行textdetect / Android.mk
所以，我什么，我做错了吗？我怎样才能实现这个任务似乎很简单？是否有更简单的方法？
编辑：
在@ ph0b响应我回到我的第一个设置并添加相同 LOCAL_EXPORT_C_INCLUDES 的<一个href=\"https://github.com/rmtheis/tess-two/blob/master/tess-two/jni/com_google$c$c_tesseract_android/Android.mk#L33\"相对=nofollow>原来的Makefile （一对夫妇的变化是适应我的路径），并且解决它。它找不到 platform.h ，因为它不知道去哪里找。
现在，当我做了这个变化我有一个不同的误差没有这样的文件或目录的#includecom_google code_tesseract_android / src目录/ API / baseapi.h我以为这是因为它没有编译之前 run_detection 的tesseract依赖于它。嗯，这是没有问题的，但它仍然编译 run_detection 的tesseract之前但是这不是问题，这是非常简单的，我觉得这样愚蠢花了这么多时间在这错误。问题是它没有找到 com_google code_tesseract_android / src目录/ API / baseapi.h ，因为我没有为这条道路不是，所以我复制 com_google code_tesseract_android 和 com_google code_leptonica_android 来自的苔丝二，并添加 $（LOCAL_PATH）到 LOCAL_EXPORT_C_INCLUDES 。这是我的最终解决方案：
JNI文件夹结构：
Android.mk
Application.mk
text_detect.cpp
android.cpp
text_detect.h
com_google code_leptonica_android
com_google code_tesseract_android
Android.mk
LOCAL_PATH：= $（叫我-DIR）#leptonica
LEPTONICA_LOCAL：= $（LOCAL_PATH）/ com_google code_leptonica_android
LEPTONICA_PATH：= $（LOCAL_PATH）/ src目录包括$（CLEAR_VARS）LOCAL_MODULE：= liblept
LOCAL_SRC_FILES：= ../libs/$(TARGET_ARCH_ABI)/liblept.so
LOCAL_EXPORT_C_INCLUDES：= \\
$（LEPTONICA_LOCAL）\\
$（LEPTONICA_PATH）/ src目录包括$（preBUILT_SHARED_LIBRARY）#tesseract
TESSERACT_LOCAL：= $（LOCAL_PATH）/ com_google code_tesseract_android
TESSERACT_PATH：= $（TESSERACT_LOCAL）/ src目录包括$（CLEAR_VARS）LOCAL_MODULE：= libtess
LOCAL_SRC_FILES：= ../libs/$(TARGET_ARCH_ABI)/libtess.so
LOCAL_EXPORT_C_INCLUDES：= \\
$（LOCAL_PATH）\\
$（TESSERACT_PATH）/ API \\
$（TESSERACT_PATH）/ ccmain \\
$（TESSERACT_PATH）/ ccstruct \\
$（TESSERACT_PATH）/ ccutil \\
$（TESSERACT_PATH）/分类\\
$（TESSERACT_PATH）/立方\\
$（TESSERACT_PATH）/ cutil \\
$（TESSERACT_PATH）/字典\\
$（TESSERACT_PATH）/ OpenCL的\\
$（TESSERACT_PATH）/ neural_networks /运行\\
$（TESSERACT_PATH）/ textord \\
$（TESSERACT_PATH）/观众\\
$（TESSERACT_PATH）/ wordrec \\
$（LEPTONICA_PATH）/ src目录\\
$（TESSERACT_LOCAL）
LOCAL_SHARED_LIBRARIES：= liblept包括$（preBUILT_SHARED_LIBRARY）#opencv
包括$（CLEAR_VARS）
OPENCV_PACKAGE_DIR：= /Users/danielsierraf/Documents/OpenCV-2.4.10-android-sdk/sdk
OPENCV_CAMERA_MODULES：=关闭
包括$（OPENCV_PACKAGE_DIR）/native/jni/OpenCV.mkLOCAL_MODULE：= run_detection
LOCAL_SRC_FILES：= text_detect.cpp android.cpp
LOCAL_LDLIBS + = -landroid -llog -ldl
LOCAL_SHARED_LIBRARIES + = libtess liblept包括$（BUILD_SHARED_LIBRARY）
您最新的安装是在一个奇怪的方式失败，NDK的构建至少应该尝试编译你的模块。也许有在中的错误全子目录-的makefile 当有之前定义的NDK模块，并且它没有找到你的模块的Android.mk。您可以尝试只具有包含$（调用所有子目录，makefile文件）您的顶级Android.mk内。
无论如何，我认为你应该直接在JNI根文件夹回到你的第一个设置，用你的模块。那么，你的主要问题是正确的声明包括路径。苔丝个/ JNI不包含任何头？他们在苔丝个/ JNI / com_google code _ * _安卓/ src目录/ * 。这意味着你需要在你的模块声明列出这些，通过给所有的绝对路径 LOCAL_EXPORT_C_INCLUDES 变量（如从原来的Makefile：<一href=\"https://github.com/rmtheis/tess-two/blob/master/tess-two/jni/com_google$c$c_tesseract_android/Android.mk#L33\" rel=\"nofollow\">https://github.com/rmtheis/tess-two/blob/master/tess-two/jni/com_google$c$c_tesseract_android/Android.mk#L33)
您还需要添加liblept依赖于libtess： LOCAL_SHARED_LIBRARIES：= liblept libtess库声明中
如果仍然失败，也有另一种可能性：不是使用生成的.so文件重新定义libtess和liblept模块，您可以直接包含苔丝个/ JNI / Android.mk 并使用相同的Application.mk比苔丝二（复印件苔丝个/ JNI / Application.mk）。它将已经正确定义libtess和liblept模块。
I followed the instructions from here and added OpenCV successfully. But I've been trying to add tesseract to the Android.mk as well, for a few days now, and haven't been able to do it.
I have an android.cpp that uses tesseract so I have to include the dependency in my Android.mk . I found this post that had almost the exact problem and he solved it importing libtess.so and liblept.so files into Android.mk, but didn't explain how to do that, so I looked and found this post that shows how to link prebuilt libraries. So based on that I tried this Android.mk:
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE := liblept
LOCAL_SRC_FILES := ../libs/$(TARGET_ARCH_ABI)/liblept.so
LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/../../../../tess-two/jni
include $(PREBUILT_SHARED_LIBRARY)
include $(CLEAR_VARS)
LOCAL_MODULE := libtess
LOCAL_SRC_FILES := ../libs/$(TARGET_ARCH_ABI)/libtess.so
LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/../../../../tess-two/jni
include $(PREBUILT_SHARED_LIBRARY)
include $(CLEAR_VARS)
OPENCV_PACKAGE_DIR:= /Users/danielsierraf/Documents/OpenCV-2.4.10-android-sdk/sdk
OPENCV_CAMERA_MODULES := off
include $(OPENCV_PACKAGE_DIR)/native/jni/OpenCV.mk
LOCAL_MODULE := run_detection
LOCAL_SHARED_LIBRARIES := libtess
LOCAL_SRC_FILES := text_detect.cpp android.cpp
LOCAL_LDLIBS += -landroid -llog -ldl
include $(BUILD_SHARED_LIBRARY)
And got this output:
[armeabi-v7a] Prebuilt : liblept.so <= src/main/jni/../libs/armeabi-v7a/
[armeabi-v7a] Install : liblept.so => src/main/jniLibs/armeabi-v7a/liblept.so
[armeabi-v7a] Compile++ thumb: run_detection <= text_detect.cpp
In file included from src/main/jni/text_detect.h:4:0,
from src/main/jni/text_detect.cpp:10:
src/main/jni/../../../../tess-two/jni/com_googlecode_tesseract_android/src/api/baseapi.h:32:22: fatal error: platform.h: No such file or directory
#include "platform.h"
^
compilation terminated.
So I guess is not linking libtess correctly, and if you look closely, it doesn't ever install libtess.so, it looks like it installs liblept.so, and then jumps to text_detect.cpp, ignoring this part:
include $(CLEAR_VARS)
LOCAL_MODULE := libtess
LOCAL_SRC_FILES := ../libs/$(TARGET_ARCH_ABI)/libtess.so
LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/../../../../tess-two/jni
include $(PREBUILT_SHARED_LIBRARY)
So I tried to force it to install liblept and libtess completely before proceeding by putting it in different files. So I put the last part of the file in a different Android.mk in another folder and tried include $(call all-subdir-makefiles), and then it installs libtess and liblept completely, but ignores the call all-subdir-makefiles.
new jni folder structure:
Android.mk
Application.mk
text_detect/
Android.mk
android.cpp
text_detect.cpp
text_detect.h
Android.mk
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE := liblept
LOCAL_SRC_FILES := ../libs/$(TARGET_ARCH_ABI)/liblept.so
LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/../../../../tess-two/jni
include $(PREBUILT_SHARED_LIBRARY)
include $(CLEAR_VARS)
LOCAL_MODULE := libtess
LOCAL_SRC_FILES := ../libs/$(TARGET_ARCH_ABI)/libtess.so
LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/../../../../tess-two/jni
include $(PREBUILT_SHARED_LIBRARY)
include $(call all-subdir-makefiles)
textdetect/Android.mk
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
OPENCV_PACKAGE_DIR:= /Users/danielsierraf/Documents/OpenCV-2.4.10-android-sdk/sdk
OPENCV_CAMERA_MODULES := off
include $(OPENCV_PACKAGE_DIR)/native/jni/OpenCV.mk
LOCAL_MODULE := run_detection
LOCAL_SHARED_LIBRARIES := libtess
LOCAL_SRC_FILES := text_detect.cpp android.cpp
LOCAL_LDLIBS += -landroid -llog -ldl
include $(BUILD_SHARED_LIBRARY)
And this is the output:
[armeabi-v7a] Prebuilt : liblept.so <= src/main/jni/../libs/armeabi-v7a/
[armeabi-v7a] Install : liblept.so => src/main/jniLibs/armeabi-v7a/liblept.so
[armeabi-v7a] Prebuilt : libtess.so <= src/main/jni/../libs/armeabi-v7a/
[armeabi-v7a] Install : libtess.so => src/main/jniLibs/armeabi-v7a/libtess.so
[armeabi] Prebuilt : liblept.so <= src/main/jni/../libs/armeabi/
[armeabi] Install : liblept.so => src/main/jniLibs/armeabi/liblept.so
[armeabi] Prebuilt : libtess.so <= src/main/jni/../libs/armeabi/
[armeabi] Install : libtess.so => src/main/jniLibs/armeabi/libtess.so
[mips] Prebuilt : liblept.so <= src/main/jni/../libs/mips/
[mips] Install : liblept.so => src/main/jniLibs/mips/liblept.so
[mips] Prebuilt : libtess.so <= src/main/jni/../libs/mips/
[mips] Install : libtess.so => src/main/jniLibs/mips/libtess.so
[x86] Prebuilt : liblept.so <= src/main/jni/../libs/x86/
[x86] Install : liblept.so => src/main/jniLibs/x86/liblept.so
[x86] Prebuilt : libtess.so <= src/main/jni/../libs/x86/
[x86] Install : libtess.so => src/main/jniLibs/x86/libtess.so
As you see it installs everything from the first Android.mk perfectly, but it never runs textdetect/Android.mk
So, what I'm I doing wrong? How can I achieve this task that seems so simple? Is there an easier way?
EDIT:
After @ph0b response I went back to my first setup and added the same LOCAL_EXPORT_C_INCLUDES as the original Makefiles (with a couple of variations adapting it to my paths), and that solved it. It couldn't find platform.h because it didn't know where to look for it.
Now, after I did this change I had a different error No such file or directory #include "com_googlecode_tesseract_android/src/api/baseapi.h" and I thought this was because it didn't compile tesseract before run_detection that depends on it. Well that wasn't the problem, it still compiles run_detection before tesseract but that wasn't the issue, it was so much simpler and I feel so stupid for having spent so much time on this error. The problem was it didn't find com_googlecode_tesseract_android/src/api/baseapi.h because I didn't provide the path for that either, so I copied com_googlecode_tesseract_android and com_googlecode_leptonica_android from tess-two and added $(LOCAL_PATH) to LOCAL_EXPORT_C_INCLUDES. This is my final solution:
jni folder structure:
Android.mk
Application.mk
text_detect.cpp
android.cpp
text_detect.h
com_googlecode_leptonica_android
com_googlecode_tesseract_android
Android.mk
LOCAL_PATH := $(call my-dir)
#leptonica
LEPTONICA_LOCAL := $(LOCAL_PATH)/com_googlecode_leptonica_android
LEPTONICA_PATH := $(LOCAL_PATH)/src
include $(CLEAR_VARS)
LOCAL_MODULE := liblept
LOCAL_SRC_FILES := ../libs/$(TARGET_ARCH_ABI)/liblept.so
LOCAL_EXPORT_C_INCLUDES := \
$(LEPTONICA_LOCAL) \
$(LEPTONICA_PATH)/src
include $(PREBUILT_SHARED_LIBRARY)
#tesseract
TESSERACT_LOCAL := $(LOCAL_PATH)/com_googlecode_tesseract_android
TESSERACT_PATH := $(TESSERACT_LOCAL)/src
include $(CLEAR_VARS)
LOCAL_MODULE := libtess
LOCAL_SRC_FILES := ../libs/$(TARGET_ARCH_ABI)/libtess.so
LOCAL_EXPORT_C_INCLUDES := \
$(LOCAL_PATH) \
$(TESSERACT_PATH)/api \
$(TESSERACT_PATH)/ccmain \
$(TESSERACT_PATH)/ccstruct \
$(TESSERACT_PATH)/ccutil \
$(TESSERACT_PATH)/classify \
$(TESSERACT_PATH)/cube \
$(TESSERACT_PATH)/cutil \
$(TESSERACT_PATH)/dict \
$(TESSERACT_PATH)/opencl \
$(TESSERACT_PATH)/neural_networks/runtime \
$(TESSERACT_PATH)/textord \
$(TESSERACT_PATH)/viewer \
$(TESSERACT_PATH)/wordrec \
$(LEPTONICA_PATH)/src \
$(TESSERACT_LOCAL)
LOCAL_SHARED_LIBRARIES := liblept
include $(PREBUILT_SHARED_LIBRARY)
#opencv
include $(CLEAR_VARS)
OPENCV_PACKAGE_DIR:= /Users/danielsierraf/Documents/OpenCV-2.4.10-android-sdk/sdk
OPENCV_CAMERA_MODULES := off
include $(OPENCV_PACKAGE_DIR)/native/jni/OpenCV.mk
LOCAL_MODULE := run_detection
LOCAL_SRC_FILES := text_detect.cpp android.cpp
LOCAL_LDLIBS += -landroid -llog -ldl
LOCAL_SHARED_LIBRARIES += libtess liblept
include $(BUILD_SHARED_LIBRARY)
Your latest setup is failing in a weird way, ndk-build should at least try to compile your module. Maybe there is a bug in all-subdir-makefiles when there are ndk modules defined before it, and it doesn't find your module's Android.mk. You can try having only include $(call all-subdir-makefiles) inside your top level Android.mk.
Anyway, I think you should go back to your first setup, with your module directly in the jni root folder. Then, your main issue is the proper declaration of includes paths. tess-two/jni doesn't contain any headers ? They're in tess-two/jni/com_googlecode_*_android/src/*. That means you need to list these in your module declarations, by giving all the absolute paths to LOCAL_EXPORT_C_INCLUDES variables (like from the original Makefiles: https://github.com/rmtheis/tess-two/blob/master/tess-two/jni/com_googlecode_tesseract_android/Android.mk#L33)
You also need to add the dependency on liblept for libtess: LOCAL_SHARED_LIBRARIES := liblept inside libtess library declaration.
If it still fails, there is also another possibility: instead of redefining libtess and liblept modules using the generated .so files, you can directly include tess-two/jni/Android.mk and use the same Application.mk than tess-two (copy `tess-two/jni/Application.mk). It will already properly define libtess and liblept modules.
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