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Tetragramm
GitHub Repository: Tetragramm/opencv
 Path: blob/master/modules/imgproc/misc/java/test/MomentsTest.java
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package org.opencv.test.imgproc;

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import org.opencv.test.OpenCVTestCase;

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import org.opencv.core.Core;

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import org.opencv.core.Mat;

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import org.opencv.core.CvType;

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import org.opencv.core.Scalar;

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import org.opencv.imgproc.Imgproc;

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import org.opencv.imgproc.Moments;

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public class MomentsTest extends OpenCVTestCase {

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    Mat data;

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    @Override

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    protected void setUp() throws Exception {

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        super.setUp();

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        data = new Mat(3,3, CvType.CV_8UC1, new Scalar(1));

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        data.row(1).setTo(new Scalar(5));

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    }

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    public void testAll() {

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        Moments res = Imgproc.moments(data);

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        assertEquals(res.m00, 21.0, EPS);

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        assertEquals(res.m10, 21.0, EPS);

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        assertEquals(res.m01, 21.0, EPS);

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        assertEquals(res.m20, 35.0, EPS);

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        assertEquals(res.m11, 21.0, EPS);

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        assertEquals(res.m02, 27.0, EPS);

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        assertEquals(res.m30, 63.0, EPS);

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        assertEquals(res.m21, 35.0, EPS);

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        assertEquals(res.m12, 27.0, EPS);

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        assertEquals(res.m03, 39.0, EPS);

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        assertEquals(res.mu20, 14.0, EPS);

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        assertEquals(res.mu11, 0.0, EPS);

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        assertEquals(res.mu02, 6.0, EPS);

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        assertEquals(res.mu30, 0.0, EPS);

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        assertEquals(res.mu21, 0.0, EPS);

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        assertEquals(res.mu12, 0.0, EPS);

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        assertEquals(res.mu03, 0.0, EPS);

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        assertEquals(res.nu20, 0.031746031746031744, EPS);

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        assertEquals(res.nu11, 0.0, EPS);

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        assertEquals(res.nu02, 0.013605442176870746, EPS);

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        assertEquals(res.nu30, 0.0, EPS);

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        assertEquals(res.nu21, 0.0, EPS);

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        assertEquals(res.nu12, 0.0, EPS);

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        assertEquals(res.nu03, 0.0, EPS);

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    }

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}

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