org.openimaj.demos.sandbox.ASMTester Maven / Gradle / Ivy
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A project for various tests that don't quite constitute
demos but might be useful to look at.
/**
* Copyright (c) 2011, The University of Southampton and the individual contributors.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the University of Southampton nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 OWNER 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 org.openimaj.demos.sandbox;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
import org.openimaj.image.DisplayUtilities;
import org.openimaj.image.FImage;
import org.openimaj.image.MBFImage;
import org.openimaj.image.colour.RGBColour;
import org.openimaj.image.model.asm.ActiveShapeModel.IterationResult;
import org.openimaj.image.model.asm.MultiResolutionActiveShapeModel;
import org.openimaj.image.model.landmark.FNormalLandmarkModel;
import org.openimaj.image.pixel.sampling.FLineSampler;
import org.openimaj.math.geometry.point.Point2dImpl;
import org.openimaj.math.geometry.point.PointList;
import org.openimaj.math.geometry.point.PointListConnections;
import org.openimaj.math.geometry.shape.PointDistributionModel;
import org.openimaj.math.geometry.shape.Triangle;
import org.openimaj.math.geometry.transforms.TransformUtilities;
import org.openimaj.math.matrix.algorithm.pca.PrincipalComponentAnalysis.NumberComponentSelector;
import org.openimaj.util.pair.IndependentPair;
import Jama.Matrix;
public class ASMTester {
public static List> generateData(int number) {
final List> data = new ArrayList>(number);
final Random rnd = new Random();
for (int i = 0; i < number; i++) {
final float c1 = rnd.nextFloat();
float c2 = rnd.nextFloat();
while (Math.abs(c1 - c2) < 0.1) {
c2 = rnd.nextFloat();
}
final Triangle t = new Triangle(
new Point2dImpl(((float) i / (number - 1)) * 80 + 10f, 10),
new Point2dImpl(90, 90),
new Point2dImpl(10, 90)
);
final FImage img = new FImage(100, 100);
img.fill(Math.min(c1, c2));
img.drawShapeFilled(t, Math.max(c1, c2));
data.add(new IndependentPair(t.asPolygon(), img));
}
return data;
}
public static void main(String[] args) {
final List> data = generateData(10);
final PointListConnections connections = new PointListConnections();
connections.addConnection(0, 1);
connections.addConnection(1, 2);
connections.addConnection(2, 0);
final float scale = 0.4f;
final FNormalLandmarkModel.Factory factory = new FNormalLandmarkModel.Factory(connections,
FLineSampler.INTERPOLATED_DERIVATIVE, 5, 13, scale);
final MultiResolutionActiveShapeModel asm = MultiResolutionActiveShapeModel.trainModel(1,
new NumberComponentSelector(10), data, new PointDistributionModel.BoxConstraint(3), factory);
for (final IndependentPair inst : generateData(10)) {
final MBFImage rgb = inst.secondObject().toRGB();
// Matrix pose = TransformUtilities.translateMatrix(50,
// 50).times(TransformUtilities.scaleMatrix(50, 50));
// PointList shape = asm.getPDM().getMean().transform(pose);
// Matrix pose = Matrix.identity(3, 3);
final Matrix pose = TransformUtilities.scaleMatrixAboutPoint(0.8, 0.8, 50, 50);
final PointList shape = inst.firstObject().transform(pose);
rgb.drawLines(connections.getLines(shape), 1, RGBColour.RED);
final IterationResult res = asm.fit(inst.secondObject(), shape);
rgb.drawLines(connections.getLines(res.shape), 1, RGBColour.GREEN);
DisplayUtilities.display(rgb);
}
}
}
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