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I am trying to match Orb features using FLANN matcher and LSH, and it gives me this error:

OpenCV: terminate handler is called! The last OpenCV error is:

OpenCV(4.1.0) Error: Unsupported format or combination of formats (> type=5 > ) in buildIndex_, file C:\opencv\source\opencv-4.1.0\modules\flann\src\miniflann.cpp, line 315

What is the reason for this?

Descriptors are already converted to CV_32F.

cv::FlannBasedMatcher matcher = cv::FlannBasedMatcher(cv::makePtr<cv::flann::LshIndexParams>(12, 20, 2));
std::vector< std::vector<cv::DMatch> > matches;
matcher.knnMatch(descriptors1, descriptors2, matches, 2 );

The problem was solved. The problem was that descriptors should not be converted to CV_32F and that I need to check if

When I delete that conversion, it works. But then it returns this: Process returned -1073741819 (0xC0000005) at the ra

C++ ORB Feature Matching with FLANN Lsh Error I am trying to match Orb features using FLANN matcher and LSH, and it give

C++ ORB Feature Matching with FLANN Lsh Error I am trying to match Orb features using FLANN matcher and LSH, and it give

I accidentally deleted them when I copied the code. Now I added that here.

C++ ORB Feature Matching with FLANN Lsh Error I am trying to match Orb features using FLANN matcher and LSH, and it give

C++ ORB Feature Matching with FLANN Lsh Error I am trying to match Orb features using FLANN matcher and LSH, and it give