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vendor: OpenCV 5.0.0 snapshot at 40738fb16ceddb5fb3fea747585f7ce6abb0605b

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Gitea Mirror Bot
2026-08-22 00:10:33 +08:00
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modules/objdetect/misc/java/test/ArucoTest.java
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package org.opencv.test.aruco;
import java.util.ArrayList;
import java.util.List;
import org.opencv.test.OpenCVTestCase;
import org.junit.Assert;
import org.opencv.core.Scalar;
import org.opencv.core.Mat;
import org.opencv.core.MatOfInt;
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 = new Board(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);
}
public void testCharucoDetector() {
Dictionary dictionary = Objdetect.getPredefinedDictionary(0);
int boardSizeX = 3, boardSizeY = 3;
CharucoBoard board = new CharucoBoard(new Size(boardSizeX, boardSizeY), 1.f, 0.8f, dictionary);
CharucoDetector charucoDetector = new CharucoDetector(board);
int cellSize = 80;
Mat boardImage = new Mat();
board.generateImage(new Size(cellSize*boardSizeX, cellSize*boardSizeY), boardImage);
assertTrue(boardImage.total() > 0);
Mat charucoCorners = new Mat();
Mat charucoIds = new Mat();
charucoDetector.detectBoard(boardImage, charucoCorners, charucoIds);
assertEquals(4, charucoIds.total());
int[] intCharucoIds = (new MatOfInt(charucoIds)).toArray();
Assert.assertArrayEquals(new int[]{0, 1, 2, 3}, intCharucoIds);
// Note: Expected values adjusted by -0.5px after fixing the systematic offset bug in charuco_detector.cpp
// The fix removes the incorrect +0.5 offset that was added after cornerSubPix
double eps = 0.2;
assertArrayEquals(new double[]{cellSize - 0.5, cellSize - 0.5}, charucoCorners.get(0, 0), eps);
assertArrayEquals(new double[]{2*cellSize - 0.5, cellSize - 0.5}, charucoCorners.get(0,1), eps);
assertArrayEquals(new double[]{cellSize - 0.5, 2*cellSize - 0.5}, charucoCorners.get(0,2), eps);
assertArrayEquals(new double[]{2*cellSize - 0.5, 2*cellSize - 0.5}, charucoCorners.get(0,3), eps);
}
}
modules/objdetect/misc/java/test/BarcodeDetectorTest.java
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package org.opencv.test.barcode;
import java.util.List;
import org.opencv.core.Mat;
import org.opencv.objdetect.BarcodeDetector;
import org.opencv.imgcodecs.Imgcodecs;
import org.opencv.test.OpenCVTestCase;
import java.util.ArrayList;
public class BarcodeDetectorTest extends OpenCVTestCase {
private final static String ENV_OPENCV_TEST_DATA_PATH = "OPENCV_TEST_DATA_PATH";
private String testDataPath;
@Override
protected void setUp() throws Exception {
super.setUp();
// relys on https://developer.android.com/reference/java/lang/System
isTestCaseEnabled = System.getProperties().getProperty("java.vm.name") != "Dalvik";
if (isTestCaseEnabled) {
testDataPath = System.getenv(ENV_OPENCV_TEST_DATA_PATH);
if (testDataPath == null)
throw new Exception(ENV_OPENCV_TEST_DATA_PATH + " has to be defined!");
}
}
public void testDetectAndDecode() {
Mat img = Imgcodecs.imread(testDataPath + "/cv/barcode/multiple/4_barcodes.jpg");
assertFalse(img.empty());
BarcodeDetector detector = new BarcodeDetector();
assertNotNull(detector);
List < String > infos = new ArrayList< String >();
List < String > types = new ArrayList< String >();
boolean result = detector.detectAndDecodeWithType(img, infos, types);
assertTrue(result);
assertEquals(infos.size(), 4);
assertEquals(types.size(), 4);
final String[] correctResults = {"9787122276124", "9787118081473", "9787564350840", "9783319200064"};
for (int i = 0; i < 4; i++) {
assertEquals(types.get(i), "EAN_13");
result = false;
for (int j = 0; j < 4; j++) {
if (correctResults[j].equals(infos.get(i))) {
result = true;
break;
}
}
assertTrue(result);
}
}
}
modules/objdetect/misc/java/test/ObjdetectTest.java
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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());
}
}
modules/objdetect/misc/java/test/QRCodeDetectorTest.java
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package org.opencv.test.objdetect;
import java.util.List;
import org.opencv.core.Mat;
import org.opencv.core.Size;
import org.opencv.objdetect.QRCodeDetector;
import org.opencv.objdetect.QRCodeEncoder;
import org.opencv.objdetect.QRCodeEncoder_Params;
import org.opencv.imgcodecs.Imgcodecs;
import org.opencv.imgproc.Imgproc;
import org.opencv.test.OpenCVTestCase;
import java.util.Arrays;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.io.UnsupportedEncodingException;
import java.nio.charset.Charset;
public class QRCodeDetectorTest extends OpenCVTestCase {
private final static String ENV_OPENCV_TEST_DATA_PATH = "OPENCV_TEST_DATA_PATH";
private String testDataPath;
@Override
protected void setUp() throws Exception {
super.setUp();
// relys on https://developer.android.com/reference/java/lang/System
isTestCaseEnabled = System.getProperties().getProperty("java.vm.name") != "Dalvik";
if (isTestCaseEnabled) {
testDataPath = System.getenv(ENV_OPENCV_TEST_DATA_PATH);
if (testDataPath == null)
throw new Exception(ENV_OPENCV_TEST_DATA_PATH + " has to be defined!");
}
}
public void testDetectAndDecode() {
Mat img = Imgcodecs.imread(testDataPath + "/cv/qrcode/link_ocv.jpg");
assertFalse(img.empty());
QRCodeDetector detector = new QRCodeDetector();
assertNotNull(detector);
String output = detector.detectAndDecode(img);
assertEquals(output, "https://opencv.org/");
}
public void testDetectAndDecodeMulti() {
Mat img = Imgcodecs.imread(testDataPath + "/cv/qrcode/multiple/6_qrcodes.png");
assertFalse(img.empty());
QRCodeDetector detector = new QRCodeDetector();
assertNotNull(detector);
List < String > output = new ArrayList< String >();
boolean result = detector.detectAndDecodeMulti(img, output);
assertTrue(result);
assertEquals(output.size(), 6);
List < String > expectedResults = Arrays.asList("SKIP", "EXTRA", "TWO STEPS FORWARD", "STEP BACK", "QUESTION", "STEP FORWARD");
assertEquals(new HashSet<String>(output), new HashSet<String>(expectedResults));
}
public void testKanji() {
byte[] inp = new byte[]{(byte)0x82, (byte)0xb1, (byte)0x82, (byte)0xf1, (byte)0x82, (byte)0xc9, (byte)0x82,
(byte)0xbf, (byte)0x82, (byte)0xcd, (byte)0x90, (byte)0xa2, (byte)0x8a, (byte)0x45};
QRCodeEncoder_Params params = new QRCodeEncoder_Params();
params.set_mode(QRCodeEncoder.MODE_KANJI);
QRCodeEncoder encoder = QRCodeEncoder.create(params);
Mat qrcode = new Mat();
encoder.encode(inp, qrcode);
Imgproc.resize(qrcode, qrcode, new Size(0, 0), 2, 2, Imgproc.INTER_NEAREST);
QRCodeDetector detector = new QRCodeDetector();
byte[] output = detector.detectAndDecodeBytes(qrcode);
assertEquals(detector.getEncoding(), QRCodeEncoder.ECI_SHIFT_JIS);
assertArrayEquals(inp, output);
List < byte[] > outputs = new ArrayList< byte[] >();
assertTrue(detector.detectAndDecodeBytesMulti(qrcode, outputs));
assertEquals(detector.getEncoding(0), QRCodeEncoder.ECI_SHIFT_JIS);
assertArrayEquals(inp, outputs.get(0));
}
}