# Install openCV after installing CUDA

<https://opencv.org/releases.html>

## then choose verion 3.4.1

Follows [intruction for installing](https://docs.opencv.org/3.4.1/d7/d9f/tutorial_linux_install.html)

## Pre installation:

\[compiler] sudo apt-get install build-essential

\[required] sudo apt-get install cmake git libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev

\[optional] sudo apt-get install python-dev python-numpy libtbb2 libtbb-dev libjpeg-dev libpng-dev libtiff-dev libjasper-dev libdc1394-22-dev

## Download opencv-3.4.1and extract to

/home/auv/opencv-3.4.1

## Creat a folder, named as build

cd \~/opencv-3.4.1

mkdir build

cd build

## Then run with option        **-D WITH\_CUDA=ON**

cmake -D CMAKE\_BUILD\_TYPE=Release **-D WITH\_CUDA=ON** -D CMAKE\_INSTALL\_PREFIX=/usr/local ..

## and run

make -j12

since auv7530 has 12 cores

## then run

sudo make install

\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*

Check installl version of openCV

`auvnano@jetsonnano:~$ pkg-config opencv --cflags`

-I/usr/local/include/opencv -I/usr/local/include

`auvnano@jetsonnano:~$ pkg-config --modversion opencv`

3.4.1