Struct Scalar

pub struct Scalar {
    pub val: [f64; 4],
}

4-element scalar value used throughout OpenCV

Fields

val: [f64; 4]

Implementations

impl Scalar

pub fn all(v: f64) -> Self

Create a new scalar with all elements set to the same value

pub fn new(v0: f64, v1: f64, v2: f64, v3: f64) -> Self

Create a scalar from individual values

pub fn gray(v: f64) -> Self

Create a scalar for grayscale (single channel)

pub fn rgb(r: f64, g: f64, b: f64) -> Self

Create a scalar for RGB color

pub fn rgba(r: f64, g: f64, b: f64, a: f64) -> Self

Create a scalar for RGBA color

pub fn get(&self, index: usize) -> f64

Get element at index

pub fn set(&mut self, index: usize, value: f64)

Set element at index

pub fn is_zero(&self) -> bool

Check if all elements are zero

pub fn magnitude(&self) -> f64

Get the magnitude (L2 norm) of the scalar

Trait Implementations

impl Clone for Scalar

fn clone(&self) -> Scalar

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Scalar

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Scalar

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Scalar

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Scalar

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl From<[f64; 4]> for Scalar

fn from(val: [f64; 4]) -> Self

Converts to this type from the input type.

impl From<(f64, f64, f64)> for Scalar

fn from((v0, v1, v2): (f64, f64, f64)) -> Self

Converts to this type from the input type.

impl From<(f64, f64, f64, f64)> for Scalar

fn from((v0, v1, v2, v3): (f64, f64, f64, f64)) -> Self

Converts to this type from the input type.

impl From<Scalar> for [f64; 4]

fn from(scalar: Scalar) -> Self

Converts to this type from the input type.

impl From<f64> for Scalar

fn from(v: f64) -> Self

Converts to this type from the input type.

impl PartialEq for Scalar

fn eq(&self, other: &Scalar) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Scalar

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for Scalar

impl StructuralPartialEq for Scalar