Opencv sample code compilation on Drive AGX linux directly

Autonomous Vehicles DRIVE AGX Xavier DRIVE AGX Xavier General
1

I found below write
https://devtalk.nvidia.com/default/topic/1071460/opencv-compile-opencv-4-1-1-on-drive-software-10-0/?offset=3

This write said about method of build OpenCV on host machine for Drive AGX and Drive AGX Linux.
Then I have some question: If I build opencv on Drive AGX Linux, can I compile some opencv sample code (e.g ‘jpg file draw example’ provided by OpenCV official website) on Drive AGX Linux directly?

2

Hi pjhkb083gak9,
yes, you can compile natively on the Drive AGX Linux, though we encourage cross-compiling/debugging.
note also that profiling is available through Nsight System/Compute remotely only from a host computer.

3

Hi shayNV,

I have some problem still about directly compile on AGX Drive
after install opencv on AGX Drive follow the script on
https://devtalk.nvidia.com/default/topic/1071460/opencv-compile-opencv-4-1-1-on-drive-software-10-0/?offset=3

I tried to compile opencv example code seen below

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
#include
#include

#include <opencv2/core.hpp>
#include <opencv2/imgcodecs.hpp>
#include <opencv2/highgui/highgui.hpp>

using namespace cv;
using namespace std;
int main( int argc, char** argv )
{
String imageName( “cat.jpg” ); // by default
if( argc > 1)
{
imageName = argv[1];
}
Mat image;
image = imread( imageName, IMREAD_COLOR ); // Read the file
if( image.empty() ) // Check for invalid input
{
cout << “Could not open or find the image” << std::endl ;
return -1;
}
namedWindow( “Display window”, WINDOW_AUTOSIZE ); // Create a window for display.
imshow( “Display window”, image ); // Show our image inside it.
waitKey(0); // Wait for a keystroke in the window
return 0;
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

and I use this compile command :
g++ test.cpp -o test ‘pkg-config --libs opencv’

but enter this command, there are no process of compile. I see “>” mark on terminal and there are no more reactions.

Could you let me know the code which used when you try to compile and compile command?

And I have another question:
Can I compile another version of opencv (ex. opencv 3.4) on AGX Drive through changing the scripts? and Could you let me know?

4

Hi @pjhkb083gak9,
I think you have a problem in the ’ mark on your command.
please try the attached script to compile and let me know if this works.

compile_example.zip (238 Bytes)

also, you can verify the opencv installation for python if you want as follow:
#python2 -c ‘import cv2; print(“python2, opencv version:”); print(cv2.version)’
#python3 -c ‘import cv2; print(“python2, opencv version:”); print(cv2.version)’

5

Hi @pjhkb083gak9,
did this solved your problem?
can I close this topic?

6

HI @shayNV
I can not confirm your solution because another works.
I will reply after testing this method soon.

Thanks!