在网上有很多关于这方面的博客,但是都没有说完整,按照他们的博客做下来代码都不能跑。所以我就自己写个博客补充一下
我这使用的.NET框架版本是 .NetFramework4.7.1
使用Nuget安装这两个程序包就够了,不需要其他的配置
一定要安装OpenCvSharp4.runtime.win 否则运行后会报错
对单个图片进行人脸识别:
string path = "D:\\素材\\R-C (1).jpg"; //aaaa.mp4
Mat srcImg = Cv2.ImRead(path, (ImreadModes)1);
//加载人眼、人脸模型数据
OpenCvSharp.CascadeClassifier faceFinder = new CascadeClassifier(@"G:\baiduDownload\opencv\sources\data\haarcascades\haarcascade_frontalface_default.xml");
OpenCvSharp.CascadeClassifier eyeFinder = new CascadeClassifier(@"G:\baiduDownload\opencv\sources\data\haarcascades\haarcascade_eye_tree_eyeglasses.xml");
//进行检测识别
Rect[] faceRects = faceFinder.DetectMultiScale(srcImg);
Rect[] eyeRects = eyeFinder.DetectMultiScale(srcImg);
//如果有检测到,就绘制结果到图像上
if (faceRects.Length > 0)
{
Cv2.Rectangle(srcImg, faceRects[0], new Scalar(0, 0, 255), 3);
}
if (eyeRects.Length > 1)
{
Cv2.Rectangle(srcImg, eyeRects[0], new Scalar(255, 0, 0), 3);
Cv2.Rectangle(srcImg, eyeRects[1], new Scalar(255, 0, 0), 3);
}
//显示结果
Cv2.ImShow("showImg", srcImg);
Cv2.WaitKey(1);
对摄像头的画面或者本地视频画面进行人脸识别:
//读取本地的视频
FrameSource video = Cv2.CreateFrameSource_Video("D:\\素材\\aaaa.mp4");
//使用摄像头
//FrameSource video = Cv2.CreateFrameSource_Camera(1);
//声明窗口
Cv2.NamedWindow("video", WindowFlags.Normal);
while (true)
{
//获取帧
Mat frame = new Mat();
video.NextFrame(frame);
//加载人眼、人脸模型数据
OpenCvSharp.CascadeClassifier faceFinder = new CascadeClassifier(@"G:\baiduDownload\opencv\sources\data\haarcascades\haarcascade_frontalface_default.xml");
OpenCvSharp.CascadeClassifier eyeFinder = new CascadeClassifier(@"G:\baiduDownload\opencv\sources\data\haarcascades\haarcascade_eye_tree_eyeglasses.xml");
//进行检测识别
Rect[] faceRects = faceFinder.DetectMultiScale(frame);
Rect[] eyeRects = eyeFinder.DetectMultiScale(frame);
//如果有检测到,就绘制结果到图像上
if (faceRects.Length > 0)
{
Cv2.Rectangle(frame, faceRects[0], new Scalar(0, 0, 255), 3);
}
if (eyeRects.Length > 1)
{
Cv2.Rectangle(frame, eyeRects[0], new Scalar(255, 0, 0), 3);
Cv2.Rectangle(frame, eyeRects[1], new Scalar(255, 0, 0), 3);
}
//显示结果
Cv2.ImShow("video", frame);
Cv2.WaitKey(1);
}