opencv/modules/objdetect/misc/java/test/ArucoTest.java
Alexander Panov b4b35cff15
Merge pull request #22368 from AleksandrPanov:move_contrib_aruco_to_main_objdetect
Megre together with https://github.com/opencv/opencv_contrib/pull/3325

1. Move aruco_detector, aruco_board, aruco_dictionary, aruco_utils to objdetect
1.1 add virtual Board::draw(), virtual ~Board()
1.2 move `testCharucoCornersCollinear` to Board classes (and rename to `checkCharucoCornersCollinear`)
1.3 add wrappers to keep the old api working
3. Reduce inludes
4. Fix java tests (add objdetect import)
5. Refactoring

### Pull Request Readiness Checklist

See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request

- [x] I agree to contribute to the project under Apache 2 License.
- [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV
- [x] The PR is proposed to the proper branch
- [x] There is a reference to the original bug report and related work
- [x] There is accuracy test, performance test and test data in opencv_extra repository, if applicable
      Patch to opencv_extra has the same branch name.
- [x] The feature is well documented and sample code can be built with the project CMake

```
**WIP**
force_builders=linux,win64,docs,Linux x64 Debug,Custom
Xbuild_contrib:Docs=OFF

build_image:Custom=ubuntu:22.04
build_worker:Custom=linux-1
```
2022-12-16 12:28:47 +03:00

84 lines
3.0 KiB
Java

package org.opencv.test.aruco;
import java.util.ArrayList;
import java.util.List;
import org.opencv.test.OpenCVTestCase;
import org.opencv.core.Scalar;
import org.opencv.core.Mat;
import org.opencv.core.Size;
import org.opencv.core.CvType;
import org.opencv.objdetect.*;
public class ArucoTest extends OpenCVTestCase {
public void testGenerateBoards() {
Dictionary dictionary = Objdetect.getPredefinedDictionary(Objdetect.DICT_4X4_50);
Mat point1 = new Mat(4, 3, CvType.CV_32FC1);
int row = 0, col = 0;
double squareLength = 40.;
point1.put(row, col, 0, 0, 0,
0, squareLength, 0,
squareLength, squareLength, 0,
0, squareLength, 0);
List<Mat>objPoints = new ArrayList<Mat>();
objPoints.add(point1);
Mat ids = new Mat(1, 1, CvType.CV_32SC1);
ids.put(row, col, 0);
Board board = Board.create(objPoints, dictionary, ids);
Mat image = new Mat();
board.generateImage(new Size(80, 80), image, 2);
assertTrue(image.total() > 0);
}
public void testArucoIssue3133() {
byte[][] marker = {{0,1,1},{1,1,1},{0,1,1}};
Dictionary dictionary = Objdetect.extendDictionary(1, 3);
dictionary.set_maxCorrectionBits(0);
Mat markerBits = new Mat(3, 3, CvType.CV_8UC1);
for (int i = 0; i < 3; i++) {
for (int j = 0; j < 3; j++) {
markerBits.put(i, j, marker[i][j]);
}
}
Mat markerCompressed = Dictionary.getByteListFromBits(markerBits);
assertMatNotEqual(markerCompressed, dictionary.get_bytesList());
dictionary.set_bytesList(markerCompressed);
assertMatEqual(markerCompressed, dictionary.get_bytesList());
}
public void testArucoDetector() {
Dictionary dictionary = Objdetect.getPredefinedDictionary(0);
DetectorParameters detectorParameters = new DetectorParameters();
ArucoDetector detector = new ArucoDetector(dictionary, detectorParameters);
Mat markerImage = new Mat();
int id = 1, offset = 5, size = 40;
Objdetect.generateImageMarker(dictionary, id, size, markerImage, detectorParameters.get_markerBorderBits());
Mat image = new Mat(markerImage.rows() + 2*offset, markerImage.cols() + 2*offset,
CvType.CV_8UC1, new Scalar(255));
Mat m = image.submat(offset, size+offset, offset, size+offset);
markerImage.copyTo(m);
List<Mat> corners = new ArrayList();
Mat ids = new Mat();
detector.detectMarkers(image, corners, ids);
assertEquals(1, corners.size());
Mat res = corners.get(0);
assertArrayEquals(new double[]{offset, offset}, res.get(0, 0), 0.0);
assertArrayEquals(new double[]{size + offset - 1, offset}, res.get(0, 1), 0.0);
assertArrayEquals(new double[]{size + offset - 1, size + offset - 1}, res.get(0, 2), 0.0);
assertArrayEquals(new double[]{offset, size + offset - 1}, res.get(0, 3), 0.0);
}
}