void Start() { //训练集路径 haarcascade_frontalface_default_xml_filepath = Application.dataPath + "/Cascades/haarcascade_frontalface_default.xml"; haarcascade_eye_xml_filepath = Application.dataPath + "/Cascades/haarcascade_eye.xml"; //读取原图 srcMat = Imgcodecs.imread(Application.dataPath + "/Textures/face.jpg", 1); Imgproc.cvtColor(srcMat, srcMat, Imgproc.COLOR_BGR2RGB); //转为灰度图像 grayMat = new Mat(); Imgproc.cvtColor(srcMat, grayMat, Imgproc.COLOR_RGB2GRAY); //检测图像中的所有脸 MatOfRect faces = new MatOfRect(); CascadeClassifier cascade = new CascadeClassifier(haarcascade_frontalface_default_xml_filepath); cascade.detectMultiScale(grayMat, faces, 1.1d, 2, 2, new Size(20, 20), new Size()); //Debug.Log(faces); //检测到多少个脸 [ elemSize*1*CV_32SC4, isCont=True, isSubmat=False, nativeObj=0x1128611568, dataAddr=0x0 ] OpenCVForUnity.Rect[] rects = faces.toArray(); for (int i = 0; i < rects.Length; i++) { //Debug.Log("detect faces " + rects[i]); Imgproc.rectangle(srcMat, new Point(rects[i].x, rects[i].y), new Point(rects[i].x + rects[i].width, rects[i].y + rects[i].height), new Scalar(0, 255, 0, 255), 2); //绿 //眼长在脸上 Mat roi_gray_img = new Mat(grayMat, new OpenCVForUnity.Rect(0, 0, rects[i].x + rects[i].width, rects[i].y + rects[i].height)); Mat roi_img = new Mat(srcMat, new OpenCVForUnity.Rect(0, 0, rects[i].x + rects[i].width, rects[i].y + rects[i].height)); MatOfRect eyes = new MatOfRect(); CascadeClassifier eyecascade = new CascadeClassifier(haarcascade_eye_xml_filepath); eyecascade.detectMultiScale(roi_gray_img, eyes, 1.3d, 5, 2, new Size(20, 20), new Size()); //参数还需要找资料了解下 //Debug.Log(eyes.elemSize()); if (eyes.elemSize() > 0) { OpenCVForUnity.Rect[] eye_rects = eyes.toArray(); for (int t = 0; t < eye_rects.Length; t++) { //Debug.Log("detect eyes " + rects[t]); //Imgproc.rectangle(roi_img, new Point(eye_rects[t].x, eye_rects[t].y), new Point(eye_rects[t].x + eye_rects[t].width, eye_rects[t].y + eye_rects[t].height), new Scalar(255, 255, 0, 255), 2); //黄 Point center = new Point((eye_rects[t].x + eye_rects[t].x + eye_rects[t].width) / 2, (eye_rects[t].y + eye_rects[t].y + eye_rects[t].height) / 2); Imgproc.circle(roi_img, center, eye_rects[t].width / 2, new Scalar(255, 255, 0, 255), 2); } } } Texture2D t2d = new Texture2D(srcMat.width(), srcMat.height()); Utils.matToTexture2D(srcMat, t2d); Sprite sp = Sprite.Create(t2d, new UnityEngine.Rect(0, 0, t2d.width, t2d.height), Vector2.zero); m_srcImage.sprite = sp; m_srcImage.preserveAspect = true; }