Package org.opencv.ximgproc

Class StructuredEdgeDetection

  • public class StructuredEdgeDetection
extends Algorithm
    Class implementing edge detection algorithm from CITE: Dollar2013 :

    • Constructor Summary

      Constructors 
      Modifier Constructor Description
      protected StructuredEdgeDetection​(long addr)  

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      static StructuredEdgeDetection __fromPtr__​(long addr)  
      void computeOrientation​(Mat _src, Mat _dst)
      The function computes orientation from edge image.
      void detectEdges​(Mat _src, Mat _dst)
      The function detects edges in src and draw them to dst.
      void edgesNms​(Mat edge_image, Mat orientation_image, Mat _dst)
      The function edgenms in edge image and suppress edges where edge is stronger in orthogonal direction.
      void edgesNms​(Mat edge_image, Mat orientation_image, Mat _dst, int r)
      The function edgenms in edge image and suppress edges where edge is stronger in orthogonal direction.
      void edgesNms​(Mat edge_image, Mat orientation_image, Mat _dst, int r, int s)
      The function edgenms in edge image and suppress edges where edge is stronger in orthogonal direction.
      void edgesNms​(Mat edge_image, Mat orientation_image, Mat _dst, int r, int s, float m)
      The function edgenms in edge image and suppress edges where edge is stronger in orthogonal direction.
      void edgesNms​(Mat edge_image, Mat orientation_image, Mat _dst, int r, int s, float m, boolean isParallel)
      The function edgenms in edge image and suppress edges where edge is stronger in orthogonal direction.
      protected void finalize()  

      • Methods inherited from class java.lang.Object

        clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • StructuredEdgeDetection

        protected StructuredEdgeDetection​(long addr)

    • Method Detail

      • detectEdges

        public void detectEdges​(Mat _src,
                        Mat _dst)
        The function detects edges in src and draw them to dst. The algorithm underlies this function is much more robust to texture presence, than common approaches, e.g. Sobel
        Parameters:
        _src - source image (RGB, float, in [0;1]) to detect edges
        _dst - destination image (grayscale, float, in [0;1]) where edges are drawn SEE: Sobel, Canny

      • computeOrientation

        public void computeOrientation​(Mat _src,
                               Mat _dst)
        The function computes orientation from edge image.
        Parameters:
        _src - edge image.
        _dst - orientation image.

      • edgesNms

        public void edgesNms​(Mat edge_image,
                     Mat orientation_image,
                     Mat _dst,
                     int r,
                     int s,
                     float m,
                     boolean isParallel)
        The function edgenms in edge image and suppress edges where edge is stronger in orthogonal direction.
        Parameters:
        edge_image - edge image from detectEdges function.
        orientation_image - orientation image from computeOrientation function.
        _dst - suppressed image (grayscale, float, in [0;1])
        r - radius for NMS suppression.
        s - radius for boundary suppression.
        m - multiplier for conservative suppression.
        isParallel - enables/disables parallel computing.

      • edgesNms

        public void edgesNms​(Mat edge_image,
                     Mat orientation_image,
                     Mat _dst,
                     int r,
                     int s,
                     float m)
        The function edgenms in edge image and suppress edges where edge is stronger in orthogonal direction.
        Parameters:
        edge_image - edge image from detectEdges function.
        orientation_image - orientation image from computeOrientation function.
        _dst - suppressed image (grayscale, float, in [0;1])
        r - radius for NMS suppression.
        s - radius for boundary suppression.
        m - multiplier for conservative suppression.

      • edgesNms

        public void edgesNms​(Mat edge_image,
                     Mat orientation_image,
                     Mat _dst,
                     int r,
                     int s)
        The function edgenms in edge image and suppress edges where edge is stronger in orthogonal direction.
        Parameters:
        edge_image - edge image from detectEdges function.
        orientation_image - orientation image from computeOrientation function.
        _dst - suppressed image (grayscale, float, in [0;1])
        r - radius for NMS suppression.
        s - radius for boundary suppression.

      • edgesNms

        public void edgesNms​(Mat edge_image,
                     Mat orientation_image,
                     Mat _dst,
                     int r)
        The function edgenms in edge image and suppress edges where edge is stronger in orthogonal direction.
        Parameters:
        edge_image - edge image from detectEdges function.
        orientation_image - orientation image from computeOrientation function.
        _dst - suppressed image (grayscale, float, in [0;1])
        r - radius for NMS suppression.

      • edgesNms

        public void edgesNms​(Mat edge_image,
                     Mat orientation_image,
                     Mat _dst)
        The function edgenms in edge image and suppress edges where edge is stronger in orthogonal direction.
        Parameters:
        edge_image - edge image from detectEdges function.
        orientation_image - orientation image from computeOrientation function.
        _dst - suppressed image (grayscale, float, in [0;1])

      • finalize

        protected void finalize()
                 throws java.lang.Throwable
        Overrides:
        finalize in class Algorithm
        Throws:
        java.lang.Throwable