Question

根据https://docs.opencv.org/3.4.0/d1/dd7/structcv_1_1line__descriptor_1_1KeyLine.html，它应该在line_descriptor.cpp和line_descriptor.hpp中定义，但我似乎无法在那里找到它。谁知道声明和定义在哪里？

Answer 1

KeyLine的定义和声明都在descriptor.hpp第102行，see by yourself

struct CV_EXPORTS KeyLine
{
 public:
  /** orientation of the line */
  float angle;

  /** object ID, that can be used to cluster keylines by the line they represent */
  int class_id;

  /** octave (pyramid layer), from which the keyline has been extracted */
  int octave;

  /** coordinates of the middlepoint */
  Point2f pt;

  /** the response, by which the strongest keylines have been selected.
   It's represented by the ratio between line's length and maximum between
   image's width and height */
  float response;

  /** minimum area containing line */
  float size;

  /** lines's extremes in original image */
  float startPointX;
  float startPointY;
  float endPointX;
  float endPointY;

  /** line's extremes in image it was extracted from */
  float sPointInOctaveX;
  float sPointInOctaveY;
  float ePointInOctaveX;
  float ePointInOctaveY;

  /** the length of line */
  float lineLength;

  /** number of pixels covered by the line */
  int numOfPixels;

  /** Returns the start point of the line in the original image */
  Point2f getStartPoint() const
  {
    return Point2f(startPointX, startPointY);
  }

  /** Returns the end point of the line in the original image */
  Point2f getEndPoint() const
  {
    return Point2f(endPointX, endPointY);
  }

  /** Returns the start point of the line in the octave it was extracted from */
  Point2f getStartPointInOctave() const
  {
    return Point2f(sPointInOctaveX, sPointInOctaveY);
  }

  /** Returns the end point of the line in the octave it was extracted from */
  Point2f getEndPointInOctave() const
  {
    return Point2f(ePointInOctaveX, ePointInOctaveY);
  }

  /** constructor */
  KeyLine()
  {
  }
};

另外我不清楚为什么你认为它应该在line_descriptor.cpp或line_descriptor.hpp

KeyLine定义在哪里？

1 个答案: