Jetson nano and Open cv

Can we use OpenCv in jetson Nano to make use of the GPU for video processing?
Also please suggest a programming language to use with OpenCv in Jetson

There is OpenCV 3.3.1 if you install via sdkmanager. However, it does not enable ‘WITH_CUDA=ON’. For leveraging GPU, you may re-install OepCV by executing the script:
JEP/script at master · AastaNV/JEP · GitHub

sir page is not working

Now the script is updated to