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fix bug different marker ordering with findChessboardCornersSBWithMeta and CALIB_CB_LARGER flag

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This commit is contained in:
tho 2025-01-27 08:36:59 +01:00
parent df5da4abcd
commit 9dde7790cf
2 changed files with 15 additions and 1 deletions
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3
modules/calib3d/src/chessboard.cpp
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@ -3720,10 +3720,11 @@ Chessboard::Board Chessboard::detectImpl(const Mat& gray,std::vector<cv::Mat> &f
continue;
}
iter_boards->normalizeOrientation(false);
if(iter_boards->getSize() == parameters.chessboard_size ||
iter_boards->getSize() == chessboard_size2)
{
iter_boards->normalizeOrientation(false);
if(iter_boards->getSize() != parameters.chessboard_size)
{
if(iter_boards->isCellBlack(0,0) == iter_boards->isCellBlack(0,int(iter_boards->colCount())-1))

13
modules/calib3d/test/test_chesscorners.cpp
View File

@ -849,5 +849,18 @@ TEST(Calib3d_RotatedCirclesPatternDetector, issue_24964)
EXPECT_LE(error, precise_success_error_level);
}
TEST(Calib3d_CornerOrdering, issue_26830) {
const cv::String dataDir = string(TS::ptr()->get_data_path()) + "cv/cameracalibration/";
const cv::Mat image = cv::imread(dataDir + "checkerboard_marker_white.png");
std::vector<Point2f> cornersMinimumSizeMatchesPatternSize;
ASSERT_TRUE(cv::findChessboardCornersSB(image, Size(14, 9), cornersMinimumSizeMatchesPatternSize, CALIB_CB_MARKER | CALIB_CB_LARGER));
std::vector<Point2f> cornersMinimumSizeSmallerThanPatternSize;
ASSERT_TRUE(cv::findChessboardCornersSB(image, Size(4, 4), cornersMinimumSizeSmallerThanPatternSize, CALIB_CB_MARKER | CALIB_CB_LARGER));
ASSERT_EQ(cornersMinimumSizeMatchesPatternSize, cornersMinimumSizeSmallerThanPatternSize);
}
}} // namespace
/* End of file. */