基于opencv的4种YOLO目标检测，C++和Python两个版本的实现，仅仅只依赖opencv库就可以运行
本程序包含了经典的YOLOv3，YOLOv4，Yolo-Fastest和YOLObile这4种YOLO目标检测的实现， 这4种yolo的.cfg和.weights文件，从百度云盘里下载
链接：https://pan.baidu.com/s/1Kcw-VhuDTRzCtVkaNEDOBg 提取码：imgu
下载完成后把下载得到的4个文件夹拷贝到和main_yolo.cpp同一目录下， 只要安装了opencv4.4.0及其以上版本的，就可以在windows和linux系统编译并运行main_yolo.cpp
此外，在Net_config配置参数项里，可以添加一个参数swapRB，控制输入图像是否交换RGB通道的， 之所以要添加这个参数，是因为我看到有的YOLO模型的输入图像并没有做交换通道到RGB的处理。
但是要用opencv4.4以上哟！而且coco.names还有几个文件夹都要和cpp文件放在一个目录里。我是个菜鸟。
但是这个opencv程序有用gpu加速么？
找了好久 没见有
terminate called after throwing an instance of 'cv::Exception'
what(): OpenCV(4.3.0) /root/opencv-4.3.0/modules/dnn/src/darknet/darknet_importer.cpp:207: error: (-212:Parsing error) Failed to parse NetParameter file: yolov3/yolov3.cfg in function 'readNetFromDarknet'
classes, scores, boxes = model.detect(frames, conf_thd, nms_thd)
其中model这个是来自：
net = cv2.dnn.readNetFromDarknet(CONFIG_FILE, WEIGHT_FILE) # 读取权重与配置文件
net.setPreferableBackend(cv2.dnn.DNN_BACKEND_CUDA)
net.setPreferableTarget(cv2.dnn.DNN_TARGET_CUDA)
model = cv2.dnn_DetectionModel(net)
model.setInputParams(size=(side_width, side_height), scale=1/255, swapRB=True)
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
An Open Source Machine Learning Framework for Everyone
Django
The Web framework for perfectionists with deadlines.
Laravel
A PHP framework for web artisans
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
Some thing interesting about game, make everyone happy.
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
Microsoft
Open source projects and samples from Microsoft.
Google
Google ❤️ Open Source for everyone.
Alibaba
Alibaba Open Source for everyone
D3
Data-Driven Documents codes.
Tencent
China tencent open source team.