我想在我的Qt中为Android项目使用Opencv3.4.1,但是我得到了构建错误,例如:
.../libopencv_core.a(system.cpp.o):system.cpp:function cv::HWFeatures::initialize(): error: undefined reference to 'android_getCpuFeatures'
.../libopencv_core.a(arithm.cpp.o):arithm.cpp:function cv::hal::cmp8u(unsigned char const*, unsigned int, unsigned char const*, unsigned int, unsigned char*, unsigned int, int, int, void*): error: undefined reference to 'carotene_o4t::isSupportedConfiguration()'
.../libopencv_core.a(arithm.cpp.o):arithm.cpp:function cv::hal::cmp8u(unsigned char const*, unsigned int, unsigned char const*, unsigned int, unsigned char*, unsigned int, int, int, void*): error: undefined reference to 'carotene_o4t::cmpGE(carotene_o4t::Size2D const&, unsigned char const*, int, unsigned char const*, int, unsigned char*, int)'
Full error file here
(对于堆栈溢出来说太大)
这是我在我的*.pro文件中写的:
QT += core quick quickcontrols2 widgets
CONFIG += c++11 console
#...
OPENCVSDKNATIVE = $$PWD/3rdparty/opencv-3.4.1-android-sdk/sdk/native
INCLUDEPATH += $$OPENCVSDKNATIVE/jni/include
equals(ANDROID_TARGET_ARCH, armeabi-v7a) {
message("setting armeabi-v7a OPENCV libs")
# OPENCV LIBS
LIBS += -L"$$OPENCVSDKNATIVE/3rdparty/libs/armeabi-v7a" -llibtiff -llibjpeg -llibjasper -llibpng -llibwebp -lIlmImf -ltbb -ltegra_hal
LIBS += -L"$$OPENCVSDKNATIVE/staticlibs/armeabi-v7a" -lopencv_core -lopencv_imgcodecs -lopencv_imgproc
ANDROID_EXTRA_LIBS += $$OPENCVSDKNATIVE/libs/armeabi-v7a/libopencv_java3.so
}
我在CPP代码中写的是:
#include <opencv2/core/core.hpp>
#include <opencv2/imgproc/imgproc.hpp>
#include <opencv2/imgcodecs/imgcodecs.hpp>
int main (int argc, char *argv[]){
QString imgPath = "path_to_my_image.jpg";
cv::Mat image = cv::imread(imgPath.toStdString().c_str());
//...
}
如何在Android的qt中使用/link opencv 3.4.1?
使用的版本:
-
OpenCv SDK for Android 3.4.1自
here
.
-
第5.10.1节
-
Qt创建者4.6.1
-
android for armeabi-v7a(GCC 4.9,Qt 5.10.1 for android armv72)版本
编辑1
:我更新了*.pro文件中的libs var,但仍有问题
LIBS +=\
-L"$$OPENCVSDKNATIVE/3rdparty/libs/armeabi-v7a"\
-L"$$OPENCVSDKNATIVE/staticlibs/armeabi-v7a"\
-llibtiff -llibjpeg -llibjasper -llibpng -lIlmImf -llibprotobuf\
-lopencv_core -lopencv_imgproc -lopencv_imgcodecs\
-ltbb -lcpufeatures -ltegra_hal
