Function random_sampling_def 

pub fn random_sampling_def(
    sampled_pts: &mut impl ToOutputArray,
    input_pts: &impl ToInputArray,
    sampled_pts_size: i32,
) -> Result<()>

Point cloud sampling by randomly select points.

Use cv::randShuffle to shuffle the point index list, then take the points corresponding to the front part of the list.

Parameters

• sampled_pts: Point cloud after sampling. Support cv::Mat(sampled_pts_size, 3, CV_32F), std::vectorcv::Point3f.
• input_pts: Original point cloud, vector of Point3 or Mat of size Nx3/3xN.
• sampled_pts_size: The desired point cloud size after sampling.
• rng: Optional random number generator used for cv::randShuffle; if it is nullptr, theRNG () is used instead.

Note

This alternative version of random_sampling function uses the following default values for its arguments:

• rng: nullptr