[−][src]Struct opencv::line_descriptor::KeyLine

#[repr(C)]
pub struct KeyLine {
    pub angle: f32,
    pub class_id: i32,
    pub octave: i32,
    pub pt: Point2f,
    pub response: f32,
    pub size: f32,
    pub start_point_x: f32,
    pub start_point_y: f32,
    pub end_point_x: f32,
    pub end_point_y: f32,
    pub s_point_in_octave_x: f32,
    pub s_point_in_octave_y: f32,
    pub e_point_in_octave_x: f32,
    pub e_point_in_octave_y: f32,
    pub line_length: f32,
    pub num_of_pixels: i32,
}

A class to represent a line

As aformentioned, it is been necessary to design a class that fully stores the information needed to characterize completely a line and plot it on image it was extracted from, when required.

KeyLine class has been created for such goal; it is mainly inspired to Feature2d's KeyPoint class, since KeyLine shares some of KeyPoint's fields, even if a part of them assumes a different meaning, when speaking about lines. In particular:

  • the class_id field is used to gather lines extracted from different octaves which refer to same line inside original image (such lines and the one they represent in original image share the same class_id value)
  • the angle field represents line's slope with respect to (positive) X axis
  • the pt field represents line's midpoint
  • the response field is computed as the ratio between the line's length and maximum between image's width and height
  • the size field is the area of the smallest rectangle containing line

Apart from fields inspired to KeyPoint class, KeyLines stores information about extremes of line in original image and in octave it was extracted from, about line's length and number of pixels it covers.

Fields

angle: f32class_id: i32octave: i32pt: Point2fresponse: f32size: f32start_point_x: f32start_point_y: f32end_point_x: f32end_point_y: f32s_point_in_octave_x: f32s_point_in_octave_y: f32e_point_in_octave_x: f32e_point_in_octave_y: f32line_length: f32num_of_pixels: i32

Methods

impl KeyLine[src]

pub fn get_start_point(self) -> Result<Point2f>[src]

Returns the start point of the line in the original image

pub fn get_end_point(self) -> Result<Point2f>[src]

Returns the end point of the line in the original image

pub fn get_start_point_in_octave(self) -> Result<Point2f>[src]

Returns the start point of the line in the octave it was extracted from

pub fn get_end_point_in_octave(self) -> Result<Point2f>[src]

Returns the end point of the line in the octave it was extracted from

pub fn default() -> Result<KeyLine>[src]

constructor

Trait Implementations

impl Clone for KeyLine[src]

impl Copy for KeyLine[src]

impl Debug for KeyLine[src]

impl PartialEq<KeyLine> for KeyLine[src]

impl StructuralPartialEq for KeyLine[src]

Auto Trait Implementations

impl RefUnwindSafe for KeyLine

impl Send for KeyLine

impl Sync for KeyLine

impl Unpin for KeyLine

impl UnwindSafe for KeyLine

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized, [src]

impl<T> Borrow<T> for T where
    T: ?Sized, [src]

impl<T> BorrowMut<T> for T where
    T: ?Sized, [src]

impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, [src]

impl<T> ToOwned for T where
    T: Clone, [src]

type Owned = T

The resulting type after obtaining ownership.

impl<T, U> TryFrom<U> for T where
    U: Into<T>, [src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, [src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.