Is the implementation code of the function (cv::FeatureDetector::detect) open source code?

xf_Li · December 2, 2021, 3:13am

Hello, everyone!
Do before CUDA, I’m new in opencv, due to the environment without cudafeatures2d. hpp, so I want to find the source code of CV: : FeatureDetector: : detect(InputArray image, CV_OUT std::vector& keypoints, InputArray mask=noArray()), try to do the transplantation of CUDA, but I only found the function definition in the source of opencv, no implementation was found.

Therefore, I would like to ask if there is an open source code for this function, or if I should reinstall the environment.

Thank you!

berak · December 2, 2021, 7:56am

src for the CUDA FeatureDetector(s) is here:

xf_Li · December 3, 2021, 9:38am

Thank you ver much! I found the corresponding implementation in OpenCV4.5, not FeatureDetector: : detect, but Feature2D::detect.

berak · December 3, 2021, 4:51pm

FeatureDetector and Feature2D are the same thing

github.com

opencv/opencv/blob/d2f87ca76cdbe61afa14142dc7011694e01b2ae3/modules/features2d/include/opencv2/features2d.hpp#L221

    
      
              CV_WRAP virtual bool empty() const CV_OVERRIDE;
              CV_WRAP virtual String getDefaultName() const CV_OVERRIDE;
          
          
    // see corresponding cv::Algorithm method
              CV_WRAP inline void write(const Ptr<FileStorage>& fs, const String& name = String()) const { Algorithm::write(fs, name); }
          };
          
          
/** Feature detectors in OpenCV have wrappers with a common interface that enables you to easily switch
          between different algorithms solving the same problem. All objects that implement keypoint detectors
          inherit the FeatureDetector interface. */
          typedef Feature2D FeatureDetector;
          
          
/** Extractors of keypoint descriptors in OpenCV have wrappers with a common interface that enables you
          to easily switch between different algorithms solving the same problem. This section is devoted to
          computing descriptors represented as vectors in a multidimensional space. All objects that implement
          the vector descriptor extractors inherit the DescriptorExtractor interface.
           */
          typedef Feature2D DescriptorExtractor;
          
          

          
/** @brief Class for implementing the wrapper which makes detectors and extractors to be affine invariant,

xf_Li · December 4, 2021, 2:18am

Yeah, Thank you very much!

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Is the implementation code of the function (cv::FeatureDetector::detect) open source code?

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