[−][src]Function opencv::features2d::draw_matches

pub fn draw_matches(
    img1: &dyn ToInputArray, 
    keypoints1: &VectorOfKeyPoint, 
    img2: &dyn ToInputArray, 
    keypoints2: &VectorOfKeyPoint, 
    matches1to2: &VectorOfDMatch, 
    out_img: &mut dyn ToInputOutputArray, 
    match_color: Scalar, 
    single_point_color: Scalar, 
    matches_mask: &VectorOfchar, 
    flags: i32
) -> Result<()>

Draws the found matches of keypoints from two images.

Parameters

  • img1: First source image.
  • keypoints1: Keypoints from the first source image.
  • img2: Second source image.
  • keypoints2: Keypoints from the second source image.
  • matches1to2: Matches from the first image to the second one, which means that keypoints1[i] has a corresponding point in keypoints2[matches[i]] .
  • outImg: Output image. Its content depends on the flags value defining what is drawn in the output image. See possible flags bit values below.
  • matchColor: Color of matches (lines and connected keypoints). If matchColor==Scalar::all(-1) , the color is generated randomly.
  • singlePointColor: Color of single keypoints (circles), which means that keypoints do not have the matches. If singlePointColor==Scalar::all(-1) , the color is generated randomly.
  • matchesMask: Mask determining which matches are drawn. If the mask is empty, all matches are drawn.
  • flags: Flags setting drawing features. Possible flags bit values are defined by DrawMatchesFlags.

This function draws matches of keypoints from two images in the output image. Match is a line connecting two keypoints (circles). See cv::DrawMatchesFlags.

C++ default parameters

  • match_color: Scalar::all(-1)
  • single_point_color: Scalar::all(-1)
  • matches_mask: std::vector()
  • flags: DrawMatchesFlags::DEFAULT