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Port of Jason Mora Saragih's FaceTracker to Java using OpenIMAJ. FaceTracker is an implementation of a facial model tracker using a Constrained Local Model.
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/**
 * FaceTracker Licence
 * -------------------
 * (Academic, non-commercial, not-for-profit licence)
 *
 * Copyright (c) 2010 Jason Mora Saragih
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *     * The software is provided under the terms of this licence stricly for
 *       academic, non-commercial, not-for-profit purposes.
 *     * Redistributions of source code must retain the above copyright notice,
 *       this list of conditions (licence) and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions (licence) and the following disclaimer
 *       in the documentation and/or other materials provided with the
 *       distribution.
 *     * The name of the author may not be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *     * As this software depends on other libraries, the user must adhere to and
 *       keep in place any licencing terms of those libraries.
 *     * Any publications arising from the use of this software, including but
 *       not limited to academic journal and conference publications, technical
 *       reports and manuals, must cite the following work:
 *
 *       J. M. Saragih, S. Lucey, and J. F. Cohn. Face Alignment through Subspace
 *       Constrained Mean-Shifts. International Journal of Computer Vision
 *       (ICCV), September, 2009.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
 * EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package com.jsaragih;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Scanner;

import org.openimaj.image.FImage;

import Jama.Matrix;

/**
 * Multiple face checker
 * 
 * @author Jason Mora Saragih
 * @author Jonathon Hare ([email protected])
 */
public class MFCheck {
	static { Tracker.init(); }
	
	/** FCheck for each view */
	FCheck[] _fcheck;

	static MFCheck load(final String fname) throws FileNotFoundException {
		BufferedReader br = null;
		try {
			br = new BufferedReader(new FileReader(fname));
			Scanner sc = new Scanner(br);
			return read(sc, true);
		} finally {
			try {
				br.close();
			} catch (IOException e) {
			}
		}
	}

	void save(final String fname) throws IOException {
		BufferedWriter bw = null;
		try {
			bw = new BufferedWriter(new FileWriter(fname));

			write(bw);
		} finally {
			try {
				if (bw != null)
					bw.close();
			} catch (IOException e) {
			}
		}
	}

	void write(BufferedWriter s) throws IOException {
		s.write(IO.Types.MFCHECK.ordinal() + " " + _fcheck.length + " ");

		for (int i = 0; i < _fcheck.length; i++)
			_fcheck[i].write(s);
	}

	/**
	 * Read the a {@link MFCheck}
	 * 
	 * @param s
	 * @param readType
	 * @return the {@link MFCheck} 
	 */
	public static MFCheck read(Scanner s, boolean readType) {
		if (readType) {
			int type = s.nextInt();
			assert (type == IO.Types.MFCHECK.ordinal());
		}

		MFCheck mfcheck = new MFCheck();

		int n = s.nextInt();
		mfcheck._fcheck = new FCheck[n];

		for (int i = 0; i < n; i++)
			mfcheck._fcheck[i] = FCheck.read(s, true);

		return mfcheck;
	}

	/**
	 * Check the whether its actually a face
	 * @param idx
	 * @param im
	 * @param s
	 * @return true if face; false otherwise
	 */
	public boolean check(int idx, FImage im, Matrix s) {
		assert ((idx >= 0) && (idx < _fcheck.length));

		return _fcheck[idx].check(im, s);
	}
}