OpenCV: cvFitLine() 연습 코드

OpenCV 라이브러리의 line fitting 함수

void cvFitLine(const CvArr* points, int dist_type, double param, double reps, double aeps, float* line)¶

Fits a line to a 2D or 3D point set.

Parameters:

points – Sequence or array of 2D or 3D points with 32-bit integer or floating-point coordinates dist_type – The distance used for fitting (see the discussion) param – Numerical parameter (C) for some types of distances, if 0 then some optimal value is chosen reps – Sufficient accuracy for the radius (distance between the coordinate origin and the line). 0.01 is a good default value. aeps – Sufficient accuracy for the angle. 0.01 is a good default value. line – The output line parameters. In the case of a 2d fitting, it is an array of 4 floats (vx, vy, x0, y0) where (vx, vy) is a normalized vector collinear to the line and (x0, y0) is some point on the line. in the case of a 3D fitting it is an array of 6 floats (vx, vy, vz, x0, y0, z0) where (vx, vy, vz) is a normalized vector collinear to the line and (x0, y0, z0) is some point on the line

ref.
Structural Analysis and Shape Descriptors — OpenCV 2.0 C Reference