Method FitLine

Fits line to the set of 2D points using M-estimator algorithm

public static void FitLine(InputArray points, OutputArray line, DistanceTypes distType, double param, double reps, double aeps)

points InputArray: Input vector of 2D or 3D points
line OutputArray: Output line parameters. In case of 2D fitting, it should be a vector of 4 elements (like Vec4f) - (vx, vy, x0, y0), where (vx, vy) is a normalized vector collinear to the line and (x0, y0) is a point on the line. In case of 3D fitting, it should be a vector of 6 elements (like Vec6f) - (vx, vy, vz, x0, y0, z0), where (vx, vy, vz) is a normalized vector collinear to the line and (x0, y0, z0) is a point on the line.
distType DistanceTypes: Distance used by the M-estimator
param double: Numerical parameter ( C ) for some types of distances. If it is 0, an optimal value is chosen.
reps double: Sufficient accuracy for the radius (distance between the coordinate origin and the line).
aeps double: Sufficient accuracy for the angle. 0.01 would be a good default value for reps and aeps.

Fits line to the set of 2D points using M-estimator algorithm

public static Line2D FitLine(IEnumerable<Point> points, DistanceTypes distType, double param, double reps, double aeps)

points IEnumerable<Point>: Input vector of 2D or 3D points
distType DistanceTypes: Distance used by the M-estimator
param double: Numerical parameter ( C ) for some types of distances. If it is 0, an optimal value is chosen.
reps double: Sufficient accuracy for the radius (distance between the coordinate origin and the line).
aeps double: Sufficient accuracy for the angle. 0.01 would be a good default value for reps and aeps.

Fits line to the set of 2D points using M-estimator algorithm

public static Line2D FitLine(IEnumerable<Point2f> points, DistanceTypes distType, double param, double reps, double aeps)

points IEnumerable<Point2f>: Input vector of 2D or 3D points
distType DistanceTypes: Distance used by the M-estimator
param double: Numerical parameter ( C ) for some types of distances. If it is 0, an optimal value is chosen.
reps double: Sufficient accuracy for the radius (distance between the coordinate origin and the line).
aeps double: Sufficient accuracy for the angle. 0.01 would be a good default value for reps and aeps.

Fits line to the set of 3D points using M-estimator algorithm

public static Line3D FitLine(IEnumerable<Point3i> points, DistanceTypes distType, double param, double reps, double aeps)

points IEnumerable<Point3i>: Input vector of 2D or 3D points
distType DistanceTypes: Distance used by the M-estimator
param double: Numerical parameter ( C ) for some types of distances. If it is 0, an optimal value is chosen.
reps double: Sufficient accuracy for the radius (distance between the coordinate origin and the line).
aeps double: Sufficient accuracy for the angle. 0.01 would be a good default value for reps and aeps.

Fits line to the set of 3D points using M-estimator algorithm

public static Line3D FitLine(IEnumerable<Point3f> points, DistanceTypes distType, double param, double reps, double aeps)

points IEnumerable<Point3f>: Input vector of 2D or 3D points
distType DistanceTypes: Distance used by the M-estimator
param double: Numerical parameter ( C ) for some types of distances. If it is 0, an optimal value is chosen.
reps double: Sufficient accuracy for the radius (distance between the coordinate origin and the line).
aeps double: Sufficient accuracy for the angle. 0.01 would be a good default value for reps and aeps.