Function create_fast_line_detector 

pub fn create_fast_line_detector(
    length_threshold: i32,
    distance_threshold: f32,
    canny_th1: f64,
    canny_th2: f64,
    canny_aperture_size: i32,
    do_merge: bool,
) -> Result<Ptr<FastLineDetector>>

Creates a smart pointer to a FastLineDetector object and initializes it

Parameters

• length_threshold: Segment shorter than this will be discarded
• distance_threshold: A point placed from a hypothesis line segment farther than this will be regarded as an outlier
• canny_th1: First threshold for hysteresis procedure in Canny()
• canny_th2: Second threshold for hysteresis procedure in Canny()
• canny_aperture_size: Aperturesize for the sobel operator in Canny(). If zero, Canny() is not applied and the input image is taken as an edge image.
• do_merge: If true, incremental merging of segments will be performed

C++ default parameters

• length_threshold: 10
• distance_threshold: 1.414213562f
• canny_th1: 50.0
• canny_th2: 50.0
• canny_aperture_size: 3
• do_merge: false