private void Run()
{
List <Mat> images = new List <Mat>();
List <int> labelsList = new List <int>();
MatOfInt labels = new MatOfInt();
images.Add(Imgcodecs.imread(facerec_0_bmp_filepath, 0));
images.Add(Imgcodecs.imread(facerec_1_bmp_filepath, 0));
labelsList.Add(0); //积极
labelsList.Add(1); //消极
labels.fromList(labelsList);
Mat testSampleMat = Imgcodecs.imread(facerec_sample_bmp_filepath, 0);
int testSampleLabel = 0;
int[] predictedLabel = new int[1];
double[] predictedConfidence = new double[1];
BasicFaceRecognizer faceRecognizer = EigenFaceRecognizer.create();
//faceRecognizer.train(images, labels); //会清空之前模型
faceRecognizer.update(images, labels); //不会清空load的模型
faceRecognizer.predict(testSampleMat, predictedLabel, predictedConfidence);
//faceRecognizer.save(Application.dataPath + "/Cascades/train_face.txt"); //生成一个txt
Debug.Log("Predicted class: " + predictedLabel[0] + " / " + "Actual class: " + testSampleLabel);
Debug.Log("Confidence: " + predictedConfidence[0]);
Mat predictedMat = images[predictedLabel[0]];
Mat baseMat = new Mat(testSampleMat.rows(), predictedMat.cols() + testSampleMat.cols(), CvType.CV_8UC1);
predictedMat.copyTo(baseMat.submat(new OpenCVForUnity.Rect(0, 0, predictedMat.cols(), predictedMat.rows())));
testSampleMat.copyTo(baseMat.submat(new OpenCVForUnity.Rect(predictedMat.cols(), 0, testSampleMat.cols(), testSampleMat.rows())));
Imgproc.putText(baseMat, "Predicted", new Point(10, 15), Core.FONT_HERSHEY_SIMPLEX, 0.4, new Scalar(255), 1, Imgproc.LINE_AA, false);
Imgproc.putText(baseMat, "Confidence:", new Point(5, 25), Core.FONT_HERSHEY_SIMPLEX, 0.2, new Scalar(255), 1, Imgproc.LINE_AA, false);
Imgproc.putText(baseMat, " " + predictedConfidence[0], new Point(5, 33), Core.FONT_HERSHEY_SIMPLEX, 0.2, new Scalar(255), 1, Imgproc.LINE_AA, false);
Imgproc.putText(baseMat, "TestSample", new Point(predictedMat.cols() + 10, 15), Core.FONT_HERSHEY_SIMPLEX, 0.4, new Scalar(255), 1, Imgproc.LINE_AA, false);
Texture2D t2d = new Texture2D(baseMat.width(), baseMat.height());
Utils.matToTexture2D(baseMat, 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;
}
