debian下，自己的demo代码编译失败

ziyouchutuwenwu commented 5 years ago

** debian下，编译opencv 3.2成功，easypr的项目也成功跑起来了，但是自己建立demo项目，抄的说明文档内的几行代码，编译错误，具体如下

clion建立的C++ 11项目 main.cpp


#include <iostream>
#include <easypr.h>

using namespace cv; using namespace std; using namespace easypr;

int main() { CPlateRecognize pr; pr.setResultShow(false); pr.setDetectType(PR_DETECT_CMSER);

String filepath = "./aa.jpg";

vector<CPlate> plateVec;
Mat src = imread(filepath);
int result = pr.plateRecognize(src, plateVec);

return 0;

}


CMakeLists.txt

cmake_minimum_required(VERSION 3.7) project(car_plate)

set(CMAKE_CXX_STANDARD 11)

add_executable(car_plate main.cpp)

find_package(OpenCV REQUIRED) include_directories("./easypr_sdk/include/" ${OpenCV_INCLUDE_DIRS}) link_directories("./easypr_sdk/lib" ${OpenCV_LIBRARY_DIRS}) link_libraries(libeasypr.a ${OpenCV_LIBS})


项目目录结构类似

├── CMakeLists.txt ├── easypr_sdk │ ├── include │ │ ├── easypr │ │ │ ├── api.hpp │ │ │ ├── config.h │ │ │ ├── core │ │ │ ├── train │ │ │ ├── util │ │ │ └── version.h │ │ └── easypr.h │ └── lib │ ├── libeasypr.a │ └── libthirdparty.a ├── main.cpp


编译错误代码

====================[ Build | all | Debug ]===================================== /home/mmc/downloads/clion/bin/cmake/linux/bin/cmake --build /home/mmc/downloads/car_plate --target all -- -j 1 Scanning dependencies of target car_plate [ 50%] Building CXX object CMakeFiles/car_plate.dir/main.cpp.o [100%] Linking CXX executable car_plate CMakeFiles/car_plate.dir/main.cpp.o：在函数‘easypr::api::plate_judge(char const, char const)’中： /home/mmc/downloads/car_plate/./easypr_sdk/include/easypr/api.hpp:17：对‘cv::imread(cv::String const&, int)’未定义的引用 /home/mmc/downloads/car_plate/./easypr_sdk/include/easypr/api.hpp:21：对‘easypr::PlateJudge::instance()’未定义的引用 /home/mmc/downloads/car_plate/./easypr_sdk/include/easypr/api.hpp:21：对‘easypr::PlateJudge::plateJudge(cv::Mat const&)’未定义的引用 CMakeFiles/car_plate.dir/main.cpp.o：在函数‘easypr::api::plate_locate(char const, bool)’中： /home/mmc/downloads/car_plate/./easypr_sdk/include/easypr/api.hpp:27：对‘cv::imread(cv::String const&, int)’未定义的引用 /home/mmc/downloads/car_plate/./easypr_sdk/include/easypr/api.hpp:31：对‘easypr::CPlateLocate::CPlateLocate()’未定义的引用 /home/mmc/downloads/car_plate/./easypr_sdk/include/easypr/api.hpp:33：对‘easypr::CPlateLocate::setLifemode(bool)’未定义的引用 /home/mmc/downloads/car_plate/./easypr_sdk/include/easypr/api.hpp:36：对‘easypr::CPlateLocate::plateLocate(cv::Mat, std::vector<cv::Mat, std::allocator >&, int)’未定义的引用 CMakeFiles/car_plate.dir/main.cpp.o：在函数‘easypr::api::plate_recognize(char const, char const, char const, bool)’中： /home/mmc/downloads/car_plate/./easypr_sdk/include/easypr/api.hpp:43：对‘cv::imread(cv::String const&, int)’未定义的引用 /home/mmc/downloads/car_plate/./easypr_sdk/include/easypr/api.hpp:46：对‘easypr::CPlateRecognize::CPlateRecognize()’未定义的引用 /home/mmc/downloads/car_plate/./easypr_sdk/include/easypr/api.hpp:54：对‘easypr::CPlateRecognize::plateRecognize(cv::Mat const&, std::vector<easypr::CPlate, std::allocator >&, int)’未定义的引用 /home/mmc/downloads/car_plate/./easypr_sdk/include/easypr/api.hpp:65：对‘cv::imwrite(cv::String const&, cv::_InputArray const&, std::vector<int, std::allocator > const&)’未定义的引用 CMakeFiles/car_plate.dir/main.cpp.o：在函数‘easypr::api::get_plate_color(char const)’中： /home/mmc/downloads/car_plate/./easypr_sdk/include/easypr/api.hpp:73：对‘cv::imread(cv::String const&, int)’未定义的引用 /home/mmc/downloads/car_plate/./easypr_sdk/include/easypr/api.hpp:77：对‘easypr::getPlateType(cv::Mat const&, bool)’未定义的引用 CMakeFiles/car_plate.dir/main.cpp.o：在函数‘cv::String::String(char const)’中： /usr/local/include/opencv2/core/cvstd.hpp:622：对‘cv::String::allocate(unsigned long)’未定义的引用 CMakeFiles/car_plate.dir/main.cpp.o：在函数‘cv::String::~String()’中： /usr/local/include/opencv2/core/cvstd.hpp:664：对‘cv::String::deallocate()’未定义的引用 CMakeFiles/car_plate.dir/main.cpp.o：在函数‘cv::String::operator=(cv::String const&)’中： /usr/local/include/opencv2/core/cvstd.hpp:672：对‘cv::String::deallocate()’未定义的引用 CMakeFiles/car_plate.dir/main.cpp.o：在函数‘cv::Mat::Mat(cv::Mat const&)’中： /usr/local/include/opencv2/core/mat.inl.hpp:421：对‘cv::Mat::copySize(cv::Mat const&)’未定义的引用 CMakeFiles/car_plate.dir/main.cpp.o：在函数‘cv::Mat::~Mat()’中： /usr/local/include/opencv2/core/mat.inl.hpp:592：对‘cv::fastFree(void*)’未定义的引用 CMakeFiles/car_plate.dir/main.cpp.o：在函数‘cv::Mat::operator=(cv::Mat const&)’中： /usr/local/include/opencv2/core/mat.inl.hpp:613：对‘cv::Mat::copySize(cv::Mat const&)’未定义的引用 CMakeFiles/car_plate.dir/main.cpp.o：在函数‘cv::Mat::release()’中： /usr/local/include/opencv2/core/mat.inl.hpp:704：对‘cv::Mat::deallocate()’未定义的引用 CMakeFiles/car_plate.dir/main.cpp.o：在函数‘cv::String::String(std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&)’中： /usr/local/include/opencv2/core/cvstd.inl.hpp:81：对‘cv::String::allocate(unsigned long)’未定义的引用 CMakeFiles/car_plate.dir/main.cpp.o：在函数‘easypr::CPlateDetect::setPDLifemode(bool)’中： /home/mmc/downloads/car_plate/./easypr_sdk/include/easypr/core/plate_detect.h:42：对‘easypr::CPlateLocate::setLifemode(bool)’未定义的引用 CMakeFiles/car_plate.dir/main.cpp.o：在函数‘easypr::CPlateRecognize::~CPlateRecognize()’中： /home/mmc/downloads/car_plate/./easypr_sdk/include/easypr/core/plate_recognize.h:23：对‘easypr::CCharsRecognise::~CCharsRecognise()’未定义的引用 /home/mmc/downloads/car_plate/./easypr_sdk/include/easypr/core/plate_recognize.h:23：对‘easypr::CPlateDetect::~CPlateDetect()’未定义的引用 collect2: error: ld returned 1 exit status CMakeFiles/car_plate.dir/build.make:94: recipe for target 'car_plate' failed make[2]: [car_plate] Error 1 CMakeFiles/Makefile2:67: recipe for target 'CMakeFiles/car_plate.dir/all' failed make[1]: [CMakeFiles/car_plate.dir/all] Error 2 Makefile:83: recipe for target 'all' failed make: *** [all] Error 2


看结果像是库没找到，但是尝试修改cmakefile，总是不太对

**Please tell us about your environment:**

* **System:** Debian9

* **Compiler version/IDE:** gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516

* **CMake version:** /home/mmc/downloads/clion/bin/cmake/linux/bin/cmake --version
cmake version 3.14.3

* **OpenCV version:** [3.2 ]

ziyouchutuwenwu commented 5 years ago

cmake是clion自带的，当然我手动用debian自带的cmake，结果也是一样的，系统的cmake版本是

cmake --version
cmake version 3.7.2

CMake suite maintained and supported by Kitware (kitware.com/cmake).

ziyouchutuwenwu commented 5 years ago

改成下面这样，解决了

cmake_minimum_required(VERSION 3.7)
project(car_plate)

set(CMAKE_CXX_STANDARD 11)

find_package(OpenCV REQUIRED)
message(STATUS "OpenCV library status:")
message(STATUS "    version: ${OpenCV_VERSION}")
message(STATUS "    libraries: ${OpenCV_LIBS}")
message(STATUS "    include path: ${OpenCV_INCLUDE_DIRS}")

include_directories(${OpenCV_INCLUDE_DIRS} "./easypr_sdk/include/")

link_directories(./easypr_sdk/lib/ /usr/bin/lib)

# link_libraries用在add_executable之前，target_link_libraries用在add_executable之后
# link_libraries用来链接静态库，target_link_libraries用来链接倒入库，即按照header file + .lib + .dll方式隐式调用动态库的.lib库
#link_libraries(libeasypr.a libthirdparty.a ${OpenCV_LIBS})

add_executable(car_plate main.cpp)
target_link_libraries(car_plate ${OpenCV_LIBS} libeasypr.a libthirdparty.a)

liuruoze / EasyPR

debian下，自己的demo代码编译失败 #302