Linux/TDA2: some question about add some code in origin sample code

Hi Chetan,

My sample code is opencvcanny.

Put my own code (head file and source code)in the folder of canny and add the path to MAKEFILE.MK after include just like

"

INCLUDE+= -I$(ipc_PATH)/hlos_common/include -I$(ipc_PATH)/packages -I$(kernel_PATH)/include/generated/uapi $(OSA_INC) -I$(ipc_PATH)/linux/include -I$($(MAKEAPPNAME)_PATH) -I$(OPENCV_INCLUDE) -I$(vision_sdk_PATH)/apps/src/hlos/adas/src/alg_plugins/opencvcanny/include

" 

i checked my code is compiled after addition in the make file, but can't link to my function.

Thanks,

Chen-Wei

Hi, Surya

Thanks for told me OPENCV_LIBS are linked in where, but in my situation is i want add some own function in the sample code of canny.

It means that we want do some modify in the sample code(call other sub function in a  new head file, which is created by me).

which files should i need to modify to avoid the error i meet ?


thanks,

Chen-Wei

Hi Chetan,
i want to add some code to the origin code in canny usecase,

origin                                                                                                       modify
#include "iCanny.h"                                                                                 #include "iCanny.h"
#include "opencv2/imgproc.hpp"                                                            #include "opencv2/imgproc.hpp"
                                                                                                               #include "/tda/vision_sdk/apps/src/hlos/adas/src/alg_plugins
                                                                                                                              /opencvcanny/include/hllow_world.h"

void iCanny(IplImage *inputImage, IplImage *outputImage)                void iCanny(IplImage *inputImage, IplImage *outputImage)
{                                                                                                             {
UInt32 lowThresh;                                                                                    UInt32 lowThresh;
UInt32 highThresh;                                                                                   UInt32 highThresh;

cv::Mat inputMat = cv::cvarrToMat(inputImage, false);                             cv::Mat inputMat = cv::cvarrToMat(inputImage, false);
cv::Mat outputMat = cv::cvarrToMat(outputImage, false);                        cv::Mat outputMat = cv::cvarrToMat(outputImage, false);

lowThresh = 30;                                                                                       lowThresh = 30;
highThresh = lowThresh * 3;                                                                    highThresh = lowThresh * 3;

cv::Canny(inputMat, outputMat, lowThresh, highThresh, 3);                cv::Canny(inputMat, outputMat, lowThresh, highThresh, 3);        
                                                                                                              hw();
}                                                                                                              }

and entire error is :
/tda/vision_sdk/binaries/apps/tda2xx_evm_linux_opencx/lib/tda2xx-evm/a15_0/release/apps.a(canny.o): In function `iCanny':
canny.cpp:(.text+0x5e): undefined reference to `hw()'

Thanks,
Chen-Wei

Hi Chetan,

this is created by myself.

Should i need to build them as a .a or .lib file and add them in MAKEFILE.MK?

Thanks,

Chen-Wei