# QR-decode

**Repository Path**: malunkun/QR-decode

## Basic Information

- **Project Name**: QR-decode
- **Description**: No description available
- **Primary Language**: C++
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2020-06-29
- **Last Updated**: 2021-11-03

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# QR-decode

### 介绍
#### QT动态添加L扫描到的Linux下video设备
 **插入一个设备** <br>
![摄像头扫描](https://images.gitee.com/uploads/images/2020/0806/003943_78941797_4944191.png "屏幕截图.png")
 
 **插入两个设备** <br>
![摄像头扫描](https://images.gitee.com/uploads/images/2020/0806/004108_a361bd57_4944191.png "屏幕截图.png")
#### 扫描优化前

 **未扫描到二维码，记录无效帧，记录扫描器时间** <br>
![未扫描到](https://images.gitee.com/uploads/images/2020/0806/004306_5e22e68f_4944191.png "屏幕截图.png")
 
 **扫描到二维码，记录扫描+解码的时间，红色字体提示** <br>
![扫描到](https://images.gitee.com/uploads/images/2020/0806/003745_e77d789e_4944191.png "屏幕截图.png")


### 优化过程
QRcode的初步定位<br>
![初步定位](https://images.gitee.com/uploads/images/2020/0807/193042_94f3245a_4944191.png "屏幕截图.png")

<br>优化扫描器，减少空闲时间的资源耗费，减少数据处理量<br>
![优化扫描器](https://images.gitee.com/uploads/images/2020/0807/235359_7c039d81_4944191.png "屏幕截图.png")
<br>
<br>扫描器的深度优化
![扫描器深度优化效果](https://images.gitee.com/uploads/images/2020/0810/182621_e7e7cd90_4944191.png "屏幕截图.png")
<br><br>引入QT多线程的解码效率
![多线程解码效果](https://images.gitee.com/uploads/images/2020/0810/182828_95aa9bc7_4944191.png "屏幕截图.png")

<br>开发板运行
![开发板效果](https://images.gitee.com/uploads/images/2020/0820/235337_4d0d83a0_4944191.png "屏幕截图.png")