[−][src]Struct lab::Lab
Struct representing a color in L*a*b* space
Fields
l: f32
a: f32
b: f32
Methods
impl Lab
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pub fn from_rgb(rgb: &[u8; 3]) -> Self
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Constructs a new Lab
from a three-element array of u8
s
Examples
let lab = lab::Lab::from_rgb(&[240, 33, 95]); assert_eq!(lab::Lab { l: 52.33686, a: 75.5516, b: 19.998878 }, lab);
pub fn from_rgba(rgba: &[u8; 4]) -> Self
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Constructs a new Lab
from a four-element array of u8
s
The Lab
struct does not store alpha channel information, so the last
u8
representing alpha is discarded. This convenience method exists
in order to easily measure colors already stored in an RGBA array.
Examples
let lab = lab::Lab::from_rgba(&[240, 33, 95, 255]); assert_eq!(lab::Lab { l: 52.33686, a: 75.5516, b: 19.998878 }, lab);
pub fn to_rgb(&self) -> [u8; 3]
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Returns the Lab
's color in RGB, in a 3-element array.
Examples
let lab = lab::Lab { l: 52.330193, a: 75.56704, b: 19.989174 }; let rgb = lab.to_rgb(); assert_eq!([240, 33, 95], rgb);
pub fn squared_distance(&self, other: &Lab) -> f32
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Measures the perceptual distance between the colors of one Lab
and an other
.
Examples
let pink = Lab { l: 66.6348, a: 52.260696, b: 14.850557 }; let websafe_pink = Lab { l: 64.2116, a: 62.519463, b: 2.8871894 }; assert_eq!(254.23636, pink.squared_distance(&websafe_pink));
Trait Implementations
impl Copy for Lab
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impl PartialEq<Lab> for Lab
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impl Default for Lab
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impl Clone for Lab
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fn clone(&self) -> Lab
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fn clone_from(&mut self, source: &Self)
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Performs copy-assignment from source
. Read more
impl Debug for Lab
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Auto Trait Implementations
Blanket Implementations
impl<T, U> Into for T where
U: From<T>,
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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
impl<T> From for T
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impl<T, U> TryFrom for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T> Borrow for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T, U> TryInto for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,