invalid arguments in FSDK.MatchFaces Luxand Face Detection and Recognition

[davies.alex1_1]

Am using the Luxand Library for my face detection and recognition android project I got the FSDK library and documentation here but when i try to Match two face templates as will be shown in my codes it gives me an error code -4 which is an INVALID ARGUMENT error, confused because my arguments passed into the MatchFace function gives no syntax error. My main class source codes are below

package com.example.facialfeatures;

import android.os.AsyncTask;
import android.os.Bundle;
import android.app.Activity;
import android.util.Log;
import android.view.Menu;
import android.widget.TextView;
import android.view.View;
import android.widget.Button;
import android.content.Intent;
import android.database.Cursor;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.provider.MediaStore;
import com.example.facialfeatures.R;
import com.luxand.FSDK;
import com.luxand.FSDK.*;

public class MainActivity extends Activity {
protected HImage oldpicture;
private static int RESULT_LOAD_IMAGE = 1;
protected boolean processing;
private FSDK_FaceTemplate FaceTemplate, FaceTemplate2;

// Subclass for async processing of FaceSDK functions.
// If long-run task runs in foreground - Android kills the process.
private class DetectFaceInBackground extends
        AsyncTask<String, Void, String> {
    protected FSDK_Features features;
    protected TFacePosition faceCoords;
    protected String picturePath;
    protected HImage picture;
    protected int result;

    @Override
    protected String doInBackground(String... params) {
        String log = new String();
        picturePath = params[0];
        faceCoords = new TFacePosition();
        faceCoords.w = 0;
        picture = new HImage();
        result = FSDK.LoadImageFromFile(picture, picturePath);
        if (result == FSDK.FSDKE_OK) {
            result = FSDK.DetectFace(picture, faceCoords);
            features = new FSDK_Features();
            if (result == FSDK.FSDKE_OK) {
                result = FSDK.DetectFacialFeaturesInRegion(picture,
                        faceCoords, features);
            }
        }
        processing = false; // long-running code is complete, now user may
                            // push the button
        return log;
    }

    @Override
    protected void onPostExecute(String resultstring) {
        TextView tv = (TextView) findViewById(R.id.textView1);

        if (result != FSDK.FSDKE_OK)
            return;

        FaceImageView imageView = (FaceImageView) findViewById(R.id.imageView1);

        imageView.setImageBitmap(BitmapFactory.decodeFile(picturePath));

        tv.setText(resultstring + "Nothing comes here");

        imageView.detectedFace = faceCoords;

        if (features.features[0] != null) // if detected
            imageView.facial_features = features;

        int[] realWidth = new int[1];
        FSDK.GetImageWidth(picture, realWidth);
        imageView.faceImageWidthOrig = realWidth[0];
        imageView.invalidate(); // redraw, marking up faces and features

        // NEW FaceTemplate object
        FSDK_FaceTemplate facetemplate = new FSDK_FaceTemplate();

        result = FSDK.GetFaceTemplateInRegion(picture, faceCoords,
                facetemplate);

        if (FaceTemplate == null) {
            Log.i("CONTAINER", "The first template "+ facetemplate +" "+ result);
            FaceTemplate = facetemplate;
        } else {
            FaceTemplate2 = facetemplate;

            if(FaceTemplate.equals(facetemplate))
            {
                Log.i("CONTAINER", "equals");
            }
            float[] Similarity = {};

            int results = FSDK.MatchFaces(FaceTemplate, facetemplate,
                    Similarity);
            Log.i("CONTAINER", "The second " + result + " " + results);
            if (result == FSDK.FSDKE_OK) {
                for (float sim : Similarity) {
                    Log.i("CONTAINER", "Correct Match with sim of " + sim);
                }
            }

            if (result == FSDK.FSDKE_INVALID_TEMPLATE) {

                Log.i("CONTAINER", "InCorrect Match ");

            }
            if (result == FSDK.FSDKE_UNSUPPORTED_TEMPLATE_VERSION) {

                Log.i("CONTAINER", "unsupport ");

            }
        }

        if (oldpicture != null)
            FSDK.FreeImage(oldpicture);
        oldpicture = picture;
    }

    @Override
    protected void onPreExecute() {
    }

    @Override
    protected void onProgressUpdate(Void... values) {
    }
}

// end of DetectFaceInBackground class

@Override
protected void onCreate(Bundle savedInstanceState) {
    processing = true; // prevent user from pushing the button while
                        // initializing

    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main); // using
                                            // res/layout/activity_main.xml

    TextView tv = (TextView) findViewById(R.id.textView1);

    try {
        int res = FSDK
                .ActivateLibrary("p8AxdJ4KWRxx05aAlXK9oBSC5BtSuZhHuQxDZmQ=");
        FSDK.Initialize();
        FSDK.SetFaceDetectionParameters(false, false, 100);
        FSDK.SetFaceDetectionThreshold(5);

        if (res == FSDK.FSDKE_OK) {
            tv.setText("FaceSDK activated\n");
        } else {
            tv.setText("Error activating FaceSDK: " + res + "\n");
        }
    } catch (Exception e) {
        tv.setText("exception " + e.getMessage());
    }

    // Adding button
    Button buttonLoadImage1 = (Button) findViewById(R.id.buttonLoadImage);
    buttonLoadImage1.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View arg) {
            if (!processing) {
                processing = true;
                Intent i = new Intent(
                        Intent.ACTION_PICK,
                        android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
                startActivityForResult(i, RESULT_LOAD_IMAGE);
            }
        }
    });

    processing = false;
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.activity_main, menu);
    return true;
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    if (requestCode == RESULT_LOAD_IMAGE && resultCode == RESULT_OK
            && null != data) {
        Uri selectedImage = data.getData();
        String[] filePathColumn = { MediaStore.Images.Media.DATA };

        Cursor cursor = getContentResolver().query(selectedImage,
                filePathColumn, null, null, null);
        cursor.moveToFirst();
        int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
        String picturePath = cursor.getString(columnIndex);
        cursor.close();

        TextView tv = (TextView) findViewById(R.id.textView1);
        tv.setText("processing...  " + picturePath);
        new DetectFaceInBackground().execute(picturePath);
    } else {
        processing = false;
    }
}
}