diff --git a/modules/objdetect/test/test_arucodetection.cpp b/modules/objdetect/test/test_arucodetection.cpp index fd957698b2..399aa36102 100644 --- a/modules/objdetect/test/test_arucodetection.cpp +++ b/modules/objdetect/test/test_arucodetection.cpp @@ -650,6 +650,40 @@ TEST(CV_ArucoDetectMarkers, regression_contour_24220) } } +TEST(CV_ArucoDetectMarkers, regression_26922) +{ + const auto arucoDict = aruco::getPredefinedDictionary(aruco::DICT_4X4_1000); + const aruco::GridBoard gridBoard(Size(19, 10), 1, 0.25, arucoDict); + + const Size imageSize(7200, 3825); + + Mat boardImage; + gridBoard.generateImage(imageSize, boardImage, 75, 1); + + const aruco::ArucoDetector detector(arucoDict); + + vector> corners; + vector ids; + detector.detectMarkers(boardImage, corners, ids); + + EXPECT_EQ(ids.size(), 190ull); + EXPECT_TRUE(find(ids.begin(), ids.end(), 76) != ids.end()); + EXPECT_TRUE(find(ids.begin(), ids.end(), 172) != ids.end()); + + float transformMatrixData[9] = {1, -0.2f, 300, 0.4f, 1, -1000, 0, 0, 1}; + const Mat transformMatrix(Size(3, 3), CV_32FC1, transformMatrixData); + + Mat warpedImage; + warpPerspective(boardImage, warpedImage, transformMatrix, imageSize); + + detector.detectMarkers(warpedImage, corners, ids); + + EXPECT_EQ(ids.size(), 133ull); + // markers with id 76 and 172 are on border and should not be detected + EXPECT_FALSE(find(ids.begin(), ids.end(), 76) != ids.end()); + EXPECT_FALSE(find(ids.begin(), ids.end(), 172) != ids.end()); +} + TEST(CV_ArucoMultiDict, setGetDictionaries) { vector dictionaries = {aruco::getPredefinedDictionary(aruco::DICT_4X4_50), aruco::getPredefinedDictionary(aruco::DICT_5X5_100)};