[−][src]Trait opencv::ximgproc::FastLineDetector

pub trait FastLineDetector: AlgorithmTrait {
    pub fn as_raw_FastLineDetector(&self) -> *const c_void;

    pub fn as_raw_mut_FastLineDetector(&mut self) -> *mut c_void;

    pub fn detect(
        &mut self, 
        _image: &dyn ToInputArray, 
        _lines: &mut dyn ToOutputArray
    ) -> Result<()> { ... }

    pub fn draw_segments(
        &mut self, 
        _image: &mut dyn ToInputOutputArray, 
        lines: &dyn ToInputArray, 
        draw_arrow: bool
    ) -> Result<()> { ... }
}

@include samples/fld_lines.cpp

Required methods

pub fn as_raw_FastLineDetector(&self) -> *const c_void[src]

pub fn as_raw_mut_FastLineDetector(&mut self) -> *mut c_void[src]

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Provided methods

pub fn detect(
    &mut self,
    _image: &dyn ToInputArray,
    _lines: &mut dyn ToOutputArray
) -> Result<()>[src]

@example fld_lines.cpp An example using the FastLineDetector

Finds lines in the input image. This is the output of the default parameters of the algorithm on the above shown image.

  ![image](https://docs.opencv.org/4.3.0/corridor_fld.jpg)

Parameters

  • _image: A grayscale (CV_8UC1) input image. If only a roi needs to be selected, use: fld_ptr-\>detect(image(roi), lines, ...); lines += Scalar(roi.x, roi.y, roi.x, roi.y);
  • _lines: A vector of Vec4f elements specifying the beginning and ending point of a line. Where Vec4f is (x1, y1, x2, y2), point 1 is the start, point 2 - end. Returned lines are directed so that the brighter side is on their left.

pub fn draw_segments(
    &mut self,
    _image: &mut dyn ToInputOutputArray,
    lines: &dyn ToInputArray,
    draw_arrow: bool
) -> Result<()>[src]

Draws the line segments on a given image.

Parameters

  • _image: The image, where the lines will be drawn. Should be bigger or equal to the image, where the lines were found.
  • lines: A vector of the lines that needed to be drawn.
  • draw_arrow: If true, arrow heads will be drawn.

C++ default parameters

  • draw_arrow: false
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Implementors

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