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opencv/modules/objdetect/misc/java/test/ObjdetectTest.java
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Java

package org.opencv.test.objdetect;
import java.util.ArrayList;
import org.opencv.core.Core;
import org.opencv.core.CvType;
import org.opencv.core.Mat;
import org.opencv.core.MatOfDouble;
import org.opencv.core.MatOfPoint2f;
import org.opencv.core.MatOfPoint3f;
import org.opencv.core.Point;
import org.opencv.core.Scalar;
import org.opencv.core.Size;
import org.opencv.objdetect.Objdetect;
import org.opencv.test.OpenCVTestCase;
import org.opencv.imgproc.Imgproc;
public class ObjdetectTest extends OpenCVTestCase {
Size size;
@Override
protected void setUp() throws Exception {
super.setUp();
size = new Size(3, 3);
}
public void testFindChessboardCornersMatSizeMat() {
Size patternSize = new Size(9, 6);
MatOfPoint2f corners = new MatOfPoint2f();
Objdetect.findChessboardCorners(grayChess, patternSize, corners);
assertFalse(corners.empty());
}
public void testFindChessboardCornersMatSizeMatInt() {
Size patternSize = new Size(9, 6);
MatOfPoint2f corners = new MatOfPoint2f();
Objdetect.findChessboardCorners(grayChess, patternSize, corners, Objdetect.CALIB_CB_ADAPTIVE_THRESH + Objdetect.CALIB_CB_NORMALIZE_IMAGE
+ Objdetect.CALIB_CB_FAST_CHECK);
assertFalse(corners.empty());
}
public void testFind4QuadCornerSubpix() {
Size patternSize = new Size(9, 6);
MatOfPoint2f corners = new MatOfPoint2f();
Size region_size = new Size(5, 5);
Objdetect.findChessboardCorners(grayChess, patternSize, corners);
Objdetect.find4QuadCornerSubpix(grayChess, corners, region_size);
assertFalse(corners.empty());
}
public void testFindCirclesGridMatSizeMat() {
int size = 300;
Mat img = new Mat(size, size, CvType.CV_8U);
img.setTo(new Scalar(255));
Mat centers = new Mat();
assertFalse(Objdetect.findCirclesGrid(img, new Size(5, 5), centers));
for (int i = 0; i < 5; i++)
for (int j = 0; j < 5; j++) {
Point pt = new Point(size * (2 * i + 1) / 10, size * (2 * j + 1) / 10);
Imgproc.circle(img, pt, 10, new Scalar(0), -1);
}
assertTrue(Objdetect.findCirclesGrid(img, new Size(5, 5), centers));
assertEquals(1, centers.rows());
assertEquals(25, centers.cols());
assertEquals(CvType.CV_32FC2, centers.type());
}
public void testFindCirclesGridMatSizeMatInt() {
int size = 300;
Mat img = new Mat(size, size, CvType.CV_8U);
img.setTo(new Scalar(255));
Mat centers = new Mat();
assertFalse(Objdetect.findCirclesGrid(img, new Size(3, 5), centers, Objdetect.CALIB_CB_CLUSTERING
| Objdetect.CALIB_CB_ASYMMETRIC_GRID));
int step = size * 2 / 15;
int offsetx = size / 6;
int offsety = (size - 4 * step) / 2;
for (int i = 0; i < 3; i++)
for (int j = 0; j < 5; j++) {
Point pt = new Point(offsetx + (2 * i + j % 2) * step, offsety + step * j);
Imgproc.circle(img, pt, 10, new Scalar(0), -1);
}
assertTrue(Objdetect.findCirclesGrid(img, new Size(3, 5), centers, Objdetect.CALIB_CB_CLUSTERING
| Objdetect.CALIB_CB_ASYMMETRIC_GRID));
assertEquals(1, centers.rows());
assertEquals(15, centers.cols());
assertEquals(CvType.CV_32FC2, centers.type());
}
}