java - 如何在 OpenCv 中从图像中识别人

Question

我编写了一个从图像中检测面部的程序:

import org.opencv.core.Core;
import org.opencv.core.Mat;
import org.opencv.core.MatOfRect;
import org.opencv.core.Point;
import org.opencv.core.Rect;
import org.opencv.core.Scalar;
import org.opencv.highgui.Highgui;
import org.opencv.objdetect.CascadeClassifier;

class DetectFaceDemo {
public void run() {
System.out.println("\nRunning DetectFaceDemo");

CascadeClassifier faceDetector = new CascadeClassifier("C:\\Users\\HM\\Documents\\NetBeansProjects\\vision\\src\\lbpcascade_frontalface.xml");
Mat image = Highgui.imread("C:\\Users\\HM\\Downloads\\john-lennon.jpg");

MatOfRect faceDetections = new MatOfRect();
faceDetector.detectMultiScale(image, faceDetections);

System.out.println(String.format("Faces detected: %s ", faceDetections.toArray().length));

for (Rect rect : faceDetections.toArray()) {
    Core.rectangle(image, new Point(rect.x, rect.y), new Point(rect.x + rect.width, rect.y + rect.height), new Scalar(0, 255, 0), 3);
}

String filename = "detcSuccessful.png";
Highgui.imwrite(filename, image);
    }
}

public class image {
public static void main(String[] args) {
// Load the native library.
System.loadLibrary(Core.NATIVE_LIBRARY_NAME);
new DetectFaceDemo().run();
    }
}

我得到了这个: John lennon picture

想要通过程序识别图像中的人并在后面显示他的名字。

类似于:计算机:这个人是约翰。

Answer 1

package com.test8;

import org.opencv.core.Core;
import org.opencv.core.Mat;
import org.opencv.core.MatOfRect;
import org.opencv.core.Point;
import org.opencv.core.Rect;
import org.opencv.core.Scalar;
import org.opencv.imgcodecs.Imgcodecs;
import org.opencv.imgproc.Imgproc;
import org.opencv.objdetect.CascadeClassifier;

class FaceDetection {
    // Load the native library.
    static{ System.loadLibrary(Core.NATIVE_LIBRARY_NAME);}

    public static void main(String[] args) {

        System.out.println("\nRunning DetectFaceDemo");

        CascadeClassifier faceDetector = new CascadeClassifier("D:\\AntonKONG\\OpenCV\\opencv\\sources\\data\\haarcascades\\haarcascade_frontalface_alt.xml");
        Mat image = Imgcodecs.imread("src//data//hkid2.png");

        MatOfRect faceDetections = new MatOfRect();
        faceDetector.detectMultiScale(image, faceDetections);

        System.out.println(String.format("Faces detected: %s ", faceDetections.toArray().length));

        for (Rect rect : faceDetections.toArray()) {
            Imgproc.rectangle(image, new Point(rect.x, rect.y), new Point(rect.x + rect.width, rect.y + rect.height), new Scalar(0, 255, 0), 3);
        }

        String filename = "detcSuccessful.png";
        Imgcodecs.imwrite(filename, image);

    }
}