Struct Edges 

pub struct Edges {
    pub angles: [char; 4],
    pub sigma: f32,
    pub threshold: Option<f32>,
    pub unanimity: f32,
    pub sensitivity: f32,
}

Settings used when computing edge symbols using edge detection. The default settings work well enough in most cases, and are exposed for advanced usage only.

Fields

angles: [char; 4]

Angle symbols given in the order | / — \.

sigma: f32

Blur size in pixels, used to reduce noise.

threshold: Option<f32>

How large a change in luma must be to register as an edge. Computed from (fallible) image analysis if not given, which works best if the image has a clear background and foreground. Defined in [0, 1].

unanimity: f32

The maximum fraction of opposing angles allowed when downsampling eges. E.g. if | is the most common angle with population p, then the opposing angle — can have a population of no more than unanimity * p for the edge to count. This serves to reduce noise.

sensitivity: f32

Sensitivity of the edge filtering performed to reduce noise. Defined in [0, ..].

Trait Implementations

impl Clone for Edges

fn clone(&self) -> Edges

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Default for Edges

fn default() -> Self

Returns the “default value” for a type.

impl Copy for Edges