Hi Everyone,
I would like to use cuda::orb compute or detectAndCompute method to describe keypoints that I detect earlier. But when I try to use these methods I got "Assertion failed (useProvidedKeypoints == false) in detectAndCompute" error. When I search on the source code, I see
void ORB_Impl::detectAndCompute(InputArray _image, InputArray _mask, std::vector& keypoints, OutputArray _descriptors, bool useProvidedKeypoints){
CV_Assert( useProvidedKeypoints == false );
...
Why does the function takes a useProvidedKeypoints parameter that is forced to be equal to false?
Is there another way to achieve my goal?
Code Sample :
cv::cuda::GpuMat gpu_img;
cv::cuda::GpuMat dst;
cv::Mat img = cv::imread("Lena.pgm", CV_LOAD_IMAGE_GRAYSCALE);
gpu_img.upload(img);
cv::Ptr orb = cv::cuda::ORB::create();
std::vector keypoints;
orb->detect(gpu_img, keypoints);
// reason not to use detectAndCompute method only, I detect keypoints earlier and do some calculations to produce new keypoints based on old ones, then I need to describe new ones.
orb->compute(gpu_img, keypoints,dst);
// same with orb->detectAndCompute(gpu_img, noArray(), keypoints,dst, true);
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