java - How to recognize a person from an Image in OpenCv -


i made program detects face image:

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));  (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 native library. system.loadlibrary(core.native_library_name); new detectfacedemo().run();     } }

and got this: john lennon picture

wanna recognize guy in image program , show name after.

something like: computer: guy john.

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 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));          (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);      } }

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