1 /**
2 * Copyright (c) 2011, The University of Southampton and the individual contributors.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
7 *
8 * * Redistributions of source code must retain the above copyright notice,
9 * this list of conditions and the following disclaimer.
10 *
11 * * Redistributions in binary form must reproduce the above copyright notice,
12 * this list of conditions and the following disclaimer in the documentation
13 * and/or other materials provided with the distribution.
14 *
15 * * Neither the name of the University of Southampton nor the names of its
16 * contributors may be used to endorse or promote products derived from this
17 * software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
22 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
26 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30 package org.openimaj.image.contour;
31
32 import static org.junit.Assert.assertTrue;
33
34 import org.junit.Test;
35 import org.openimaj.image.FImage;
36
37 /**
38 * Tests for the {@link SuzukiContourProcessor} direct from the paper
39 *
40 * @author Sina Samangooei (ss@ecs.soton.ac.uk)
41 *
42 */
43 public class SuzukiContourProcessorTest {
44 /**
45 * Tests fig3
46 *
47 * @throws Exception
48 */
49 @Test
50 public void testFig3() throws Exception {
51 final FImage img = new FImage(new float[][] {
52 new float[] { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
53 new float[] { 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0 },
54 new float[] { 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 0 },
55 new float[] { 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 0 },
56 new float[] { 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0 },
57 new float[] { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
58 });
59
60 final FImage imgC = img.clone();
61 final Contour root = SuzukiContourProcessor.findContours(imgC);
62
63 final FImage expected = new FImage(new float[][] {
64 new float[] { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
65 new float[] { 0, 0, 2, 2, 2, 2, 2, 2, -2, 0, 0, 0 },
66 new float[] { 0, 0, -3, 0, 0, -4, 0, 0, -2, 0, -5, 0 },
67 new float[] { 0, 0, -3, 0, 0, -4, 0, 0, -2, 0, 0, 0 },
68 new float[] { 0, 0, 2, 2, 2, 2, 2, 2, -2, 0, 0, 0 },
69 new float[] { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
70 });
71
72 assertTrue(imgC.equals(expected));
73 System.out.println(root);
74 }
75 }