Face recognition using Open CV in Java

Testing the configuration on a new Java project

Test the Face-detector

package com.ocr.ocrexample;

import org.opencv.core.*;
import org.opencv.imgcodecs.Imgcodecs;
import org.opencv.objdetect.CascadeClassifier;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;

import static java.lang.System.loadLibrary;
import static org.opencv.imgproc.Imgproc.rectangle;

class DetectFaceDemo {

public static void run(MultipartFile file) throws IOException {

loadLibrary( Core.NATIVE_LIBRARY_NAME );
CascadeClassifier faceDetector = new CascadeClassifier();
faceDetector.load( "C:\\Users\\Desktop\\ocv\\.idea\\haarcascade_frontalface_alt.xml" );

// Input image

Mat image = Imgcodecs.imread(String.valueOf(file));
// Detecting faces
MatOfRect faceDetections = new MatOfRect();
faceDetector.detectMultiScale( image, faceDetections );

// Creating a rectangular box showing faces detected
for (Rect rect : faceDetections.toArray()) {
rectangle( image, new Point( rect.x, rect.y ), new Point( rect.width + rect.x,
rect.height + rect.y ), new Scalar( 0, 255, 0 ) );

// Saving the output image
String filename = "Ouput.jpg";
System.out.println("Face Detected Successfully ");
Imgcodecs.imwrite( "D:\\" + filename, image );




You can get the face recognition from the open cv java.

Former Software Engineer @axiatadigitallabs |SLIIT | Electrical and Electronic Engineering | Contact me — ashan.lakmal1995@gmail.com

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