Trait GrayColor 

pub trait GrayColor: PixelColor {
    const BLACK: Self;
    const WHITE: Self;

    // Required method
    fn luma(&self) -> u8;
}

Grayscale color.

Required Associated Constants

const BLACK: Self

Black color (0% luma).

const WHITE: Self

White color (100% luma).

Required Methods

fn luma(&self) -> u8

Returns the luma channel value.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl GrayColor for Gray2

const BLACK: Gray2

const WHITE: Gray2

impl GrayColor for Gray4

const BLACK: Gray4

const WHITE: Gray4

impl GrayColor for Gray8

const BLACK: Gray8

const WHITE: Gray8