hey everyone. i have written an application for implementing YOLO in c++ using opencv::dnn module. it works fine in windows but in linux i am unable to compile and build this application. actually i am unable to include dnn module in build process. can anyone guide me in this regard.

i am using opencv 4.1.0 ubuntu 16.04 and cmake build process

hey everyone. i have written an application for implementing YOLO in c++ using opencv::dnn module. it works fine in windows but in linux i am unable to compile and build this application. actually i am unable to include dnn module in build process. can anyone guide me in this regard.

Error i get: "dnn" is not a namespace. (In) using namespace cv::dnn. Where ever i have used dnn it has given error there.

i am using opencv 4.1.0 ubuntu 16.04 and cmake build process

hey everyone. i have written an application for implementing YOLO in c++ using opencv::dnn module. it works fine in windows but in linux i am unable to compile and build this application. actually i am unable to include dnn module in build process. can anyone guide me in this regard.

Error i get: "dnn" is not a namespace. (In) using namespace cv::dnn. Where ever i have used dnn it has given error there.

i am using opencv 4.1.0 ubuntu 16.04 and cmake build process

hey everyone. i have written an application for implementing YOLO in c++ using opencv::dnn module. it works fine in windows but in linux i am unable to compile and build this application. actually i am unable to include dnn module in build process. can anyone guide me in this regard.

Error i get: "dnn" is not a namespace. (In) using namespace cv::dnn. Where ever i have used dnn it has given error there.

i am using opencv 4.1.0 ubuntu 16.04 and cmake build process

to show exactly what i am doing: i install opencv4.1.0 following this tutorial. https://www.youtube.com/watch?v=2Pboq2LFoaI also i have "sdk" for cross compiling that also has opencv 4.1.0. when i do pkg-config --cflags opencv it gives path /usr/include/opencv and when i look for librares(pkg-config --libs opencv) it gives path for libs in "sdk".

now i take my code(that is working in windows) in ubuntu envrionment and try to build it with cmake. cmake script is below :: CMake script: cmake_minimum_required(VERSION 3.5) project(OD_display)

add_compile_options(-std=c++11)

find_package(OpenCV)

include_directories( include ${OpenCV_INCLUDE_DIRS} )

If the package has been found, several variables will

be set, you can find the full list with descriptions

in the OpenCVConfig.cmake file.

Print some message showing some of them

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

add_executable(${PROJECT_NAME} src/source.cpp)

target_link_libraries(${PROJECT_NAME} ${OpenCV_LIBRARIES} ) and message status comes out to be: OpenCV library status: -- config: /usr/share/OpenCV -- version: 2.4.9.1 -- libraries: opencv_videostab;opencv_video;opencv_ts;opencv_superres;opencv_stitching;opencv_photo;opencv_ocl;opencv_objdetect;opencv_ml;opencv_legacy;opencv_imgproc;opencv_highgui;opencv_gpu;opencv_flann;opencv_features2d;opencv_core;opencv_contrib;opencv_calib3d -- include path: /usr/include/opencv;/usr/include -- Configuring done -- Generating done

Make file gives multiple errors like this /home/rizwan/Desktop/OD_ubuntu/include/Object_Detection.h:10:21: error: ‘dnn’ is not a namespace-name using namespace cv::dnn; ^ /home/rizwan/Desktop/OD_ubuntu/include/Object_Detection.h:10:24: error: expected namespace-name before ‘;’ token using namespace cv::dnn; ^ /home/rizwan/Desktop/OD_ubuntu/include/Object_Detection.h:26:37: error: ‘dnn’ in namespace ‘cv’ does not name a type vector<string> getOutput(const cv::dnn::Net& net);

hey everyone. i have written an application for implementing YOLO in c++ using opencv::dnn module. it works fine in windows but in linux i am unable to compile and build this application. actually i am unable to include dnn module in build process. can anyone guide me in this regard.

Error i get: "dnn" is not a namespace. (In) using namespace cv::dnn. Where ever i have used dnn it has given error there.

i am using opencv 4.1.0 ubuntu 16.04 and cmake build process

to show exactly what i am doing: i install opencv4.1.0 following this tutorial. https://www.youtube.com/watch?v=2Pboq2LFoaI also i have "sdk" for cross compiling that also has opencv 4.1.0. when i do pkg-config --cflags opencv it gives path /usr/include/opencv and when i look for librares(pkg-config --libs opencv) it gives path for libs in "sdk".

now i take my code(that is working in windows) in ubuntu envrionment and try to build it with cmake. cmake script is below : :

CMake script: cmake_minimum_required(VERSION 3.5) project(OD_display)

add_compile_options(-std=c++11)

project(OD_display) add_compile_options(-std=c++11) find_package(OpenCV)

include_directories( include ${OpenCV_INCLUDE_DIRS} )

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

add_executable(${PROJECT_NAME} src/source.cpp)

src/source.cpp) target_link_libraries(${PROJECT_NAME} ${OpenCV_LIBRARIES} ) )

and message status comes out to be: OpenCV library status: -- config: /usr/share/OpenCV -- version: 2.4.9.1 -- libraries: opencv_videostab;opencv_video;opencv_ts;opencv_superres;opencv_stitching;opencv_photo;opencv_ocl;opencv_objdetect;opencv_ml;opencv_legacy;opencv_imgproc;opencv_highgui;opencv_gpu;opencv_flann;opencv_features2d;opencv_core;opencv_contrib;opencv_calib3d -- include path: /usr/include/opencv;/usr/include -- Configuring done -- Generating done

Make file gives multiple errors like this /home/rizwan/Desktop/OD_ubuntu/include/Object_Detection.h:10:21: error: ‘dnn’ is not a namespace-name using namespace cv::dnn; ^ /home/rizwan/Desktop/OD_ubuntu/include/Object_Detection.h:10:24: error: expected namespace-name before ‘;’ token using namespace cv::dnn; ^ /home/rizwan/Desktop/OD_ubuntu/include/Object_Detection.h:26:37: error: ‘dnn’ in namespace ‘cv’ does not name a type vector<string> getOutput(const cv::dnn::Net& net);

hey everyone. i have written an application for implementing YOLO in c++ using opencv::dnn module. it works fine in windows but in linux i am unable to compile and build this application. actually i am unable to include dnn module in build process. can anyone guide me in this regard.

Error i get: "dnn" is not a namespace. (In) using namespace cv::dnn. Where ever i have used dnn it has given error there.

i am using opencv 4.1.0 ubuntu 16.04 and cmake build process

to show exactly what i am doing: i install opencv4.1.0 following this tutorial. https://www.youtube.com/watch?v=2Pboq2LFoaI also i have "sdk" for cross compiling that also has opencv 4.1.0. when i do pkg-config --cflags opencv it gives path /usr/include/opencv and when i look for librares(pkg-config --libs opencv) it gives path for libs in "sdk".

now i take my code(that is working in windows) in ubuntu envrionment and try to build it with cmake. cmake script is below :

CMake script: cmake_minimum_required(VERSION 3.5)
project(OD_display)
add_compile_options(-std=c++11)
find_package(OpenCV)
 
find_package(OpenCV)

include_directories(
      include
      ${OpenCV_INCLUDE_DIRS}
)
 
)

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

add_executable(${PROJECT_NAME} src/source.cpp)
target_link_libraries(${PROJECT_NAME}
     ${OpenCV_LIBRARIES}
))

OpenCV library status:
--     config: /usr/share/OpenCV
--     version: 2.4.9.1
--     libraries: opencv_videostab;opencv_video;opencv_ts;opencv_superres;opencv_stitching;opencv_photo;opencv_ocl;opencv_objdetect;opencv_ml;opencv_legacy;opencv_imgproc;opencv_highgui;opencv_gpu;opencv_flann;opencv_features2d;opencv_core;opencv_contrib;opencv_calib3d
--     include path: /usr/include/opencv;/usr/include
-- Configuring done
-- Generating done
done

/home/rizwan/Desktop/OD_ubuntu/include/Object_Detection.h:10:21: error: ‘dnn’ is not a namespace-name
 using namespace cv::dnn;
                   ^
/home/rizwan/Desktop/OD_ubuntu/include/Object_Detection.h:10:24: error: expected namespace-name before ‘;’ token
 using namespace cv::dnn;
                        ^
/home/rizwan/Desktop/OD_ubuntu/include/Object_Detection.h:26:37: error: ‘dnn’ in namespace ‘cv’ does not name a type
  vector<string> vector<String> getOutput(const cv::dnn::Net& net);
net);