Face Recognition using javaCV and netbeans

Question

Application should be able to save images face_1_01.png , face_1_02.png , face_2_01.png and so on in a folder called training images using a webcam, then application should be able to loop through all the images in that folder and recognize the face/faces currently appearing in the webcam returning the name of the image above the rectangle that is drawn over the face.

here is an example. Unfortunately the application in the video is not open source..

here is the link of following code.

    import com.googlecode.javacv.cpp.opencv_core;
    import static com.googlecode.javacv.cpp.opencv_highgui.*;
    import static com.googlecode.javacv.cpp.opencv_core.*;
    import static com.googlecode.javacv.cpp.opencv_imgproc.*;
    import static com.googlecode.javacv.cpp.opencv_contrib.*;
    import java.io.File;
    import java.io.FilenameFilter;

    public class OpenCVFaceRecognizer {

    public static void main(String[] args) {

    String trainingDir = args[0];
    IplImage testImage = cvLoadImage(args[1]);

    File root = new File(trainingDir);

    FilenameFilter pngFilter = new FilenameFilter() {
        public boolean accept(File dir, String name) {
            return name.toLowerCase().endsWith(".png");
        }
    };

    File[] imageFiles = root.listFiles(pngFilter);

    MatVector images = new MatVector(imageFiles.length);

    int[] labels = new int[imageFiles.length];

    int counter = 0;
    int label;

    IplImage img;
    IplImage grayImg;

    for (File image : imageFiles) {
        img = cvLoadImage(image.getAbsolutePath());

        label = Integer.parseInt(image.getName().split("\\-")[0]);

        grayImg = IplImage.create(img.width(), img.height(), IPL_DEPTH_8U, 1);

        cvCvtColor(img, grayImg, CV_BGR2GRAY);

        images.put(counter, grayImg);

        labels[counter] = label;

        counter++;
    }

    IplImage greyTestImage = IplImage.create(testImage.width(), testImage.height(), IPL_DEPTH_8U, 1);

    FaceRecognizer faceRecognizer = createFisherFaceRecognizer();
    // FaceRecognizer faceRecognizer = createEigenFaceRecognizer();
    // FaceRecognizer faceRecognizer = createLBPHFaceRecognizer()

    faceRecognizer.train(images, labels);

    cvCvtColor(testImage, greyTestImage, CV_BGR2GRAY);

    int predictedLabel = faceRecognizer.predict(greyTestImage);

    System.out.println("Predicted label: " + predictedLabel);
    }
    }

I am unable to figure out where to specify the path name of the directory with contains all the training images.

score 0 · Answer 1 · answered Jul 12 '16 at 09:06

String trainingDir = args[0];

The program read traningDir from the first command-line parameters.

You can either run via console(i.e. terminal in linux or DOS in windows) like

java OpenCVFaceRecognizer /path/to/training/Dir

or in IDE add /path/to/traning/Dir into "run" parameter of this project. In the latter way, you can click "run" button to execute.

Face Recognition using javaCV and netbeans

1 Answers1