# ORBExtractor

**Repository Path**: liuzhenbo123/ORBExtractor

## Basic Information

- **Project Name**: ORBExtractor
- **Description**: orb extractor(based by orbslam2)
- **Primary Language**: C++
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 1
- **Created**: 2019-12-30
- **Last Updated**: 2021-11-02

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# ORBExtractor(based on orbslam2)


**Authors:** [Liu Zhenbo](https://www.zhihu.com/people/liuzhenbo)

**29 Nov 2019**: First submit

To better understand the feature extractor strategy of orbslam2, I separate orb-feature extractor code from orbslam2 project.
So, **ORBExtractor** is a feature detector way which is based on [orbslam2](https://github.com/raulmur/ORB_SLAM2).

# 1. Prerequisites
I have tested the library in **Ubuntu 18.04**
 
## C++11 or C++0x Compiler

## OpenCV
I use [OpenCV](http://opencv.org) to manipulate images and features.My version is 3.4.8.

# 2. Building this library and examples(main.cpp)

Clone the repository:
```
git clone https://gitee.com/liuzhenbo123/ORBExtractor
```
```
cd ORBExtractor
```
```
mkdir build
```
```
cd build
```
```
cmake ..
```
```
build -j4
```

# 3.Examples(main.cpp)

```
cd bin
```
```
./ORBextractor ../pictures/liu2.jpg ../param/orb.yaml
```

## Provide two results
### First
![image](https://gitee.com/liuzhenbo123/ORBExtractor/raw/master/screenshots/liu1.jpg)

![image](https://gitee.com/liuzhenbo123/ORBExtractor/raw/master/screenshots/1.jpg)

### Second

![image](https://gitee.com/liuzhenbo123/ORBExtractor/raw/master/screenshots/liu2.jpg)

![image](https://gitee.com/liuzhenbo123/ORBExtractor/raw/master/screenshots/2.jpg)