# Install AlexeyAB Darknet (and OpenCV)

###### tags: `2022/06` `Darknet` `AlexeyAB` `OpenCV`
::: info
<ins>(2022/6/17)</ins> After installation of CUDA and cuDNN, it is time to run AI applications. One of the most famous image recognition Yolo V4 requires Darknet for complilation.
:::

## :memo: Table of Contents

[TOC]

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## :memo: Dependency

Darknet requires OpenCV, so install the package first.

$ sudo apt install libopencv-dev

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## :memo: Installation

$ git clone https://github.com/AlexeyAB/darknet
$ cd darknet
# Change the setting to enable GPU
$ sed -i "s/GPU=0/GPU=1/g" Makefile
$ sed -i "s/CUDNN_HALF=0/CUDNN_HALF=1/g" Makefile
$ sed -i "s/CUDNN=0/CUDNN=1/g" Makefile
$ sed -i "s/OPENCV=0/OPENCV=1/g" Makefile
$ make

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