Lab

Struct Lab

pub struct Lab;

Expand description

🌌 The CIELAB color space

The CIE L*a*b* color space was created in 1976 to be more perceptually uniform than RGB color spaces, and is both widely used and the basis of other efforts to express colors, including FreieFarbe.

Its components are [L, a, b] with

L - the lightness with a natural bound between 0 and 100, where 0 represents pure black and 100 represents the lightness of white;
a - how green/red the color is; and
b - how blue/yellow the color is.

a and b are unbounded, but are usually between -160 and 160.

The color space has poor hue linearity and hue uniformity compared with Oklab, though superior lightness uniformity. Note that the lightness range differs from Oklab as well; in Oklab white has a lightness of 1.

The CIE L*a*b* color space is defined in terms of a D50 white point. For conversion between color spaces with other illuminants (especially D65 as in sRGB), the standard Bradform linear chromatic adaptation transform is used.

This corresponds to the color space in CSS Color Module Level 4 § 9.1 .

Lab has a cylindrical counterpart: Lch.

Trait Implementations§

impl Clone for Lab

fn clone(&self) -> Lab

Returns a duplicate of the value. Read more

1.0.0§

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

Performs copy-assignment from source. Read more

impl ColorSpace for Lab

const TAG: Option<ColorSpaceTag>

The tag corresponding to this color space, if a matching tag exists.

const WHITE_COMPONENTS: [f32; 3]

The component values for the color white within this color space.

fn to_linear_srgb(_: [f32; 3]) -> [f32; 3]

Convert an opaque color to linear sRGB. Read more

fn from_linear_srgb(src: [f32; 3]) -> [f32; 3]

Convert an opaque color from linear sRGB. Read more

fn scale_chroma(_: [f32; 3], scale: f32) -> [f32; 3]

Scale the chroma by the given amount. Read more

fn convert<TargetCS>(src: [f32; 3]) -> [f32; 3]
where TargetCS: ColorSpace,

Convert to a different color space. Read more

fn clip(_: [f32; 3]) -> [f32; 3]

Clip the color’s components to fit within the natural gamut of the color space. Read more

const IS_LINEAR: bool = false

Whether the color space is linear. Read more

const LAYOUT: ColorSpaceLayout = ColorSpaceLayout::Rectangular

The layout of the color space. Read more

const WHITE_POINT: Chromaticity = Chromaticity::D65

The white point of the color space. Read more

fn to_linear_srgb_absolute(src: [f32; 3]) -> [f32; 3]

Convert an opaque color to linear sRGB, without chromatic adaptation. Read more

fn from_linear_srgb_absolute(src: [f32; 3]) -> [f32; 3]

Convert an opaque color from linear sRGB, without chromatic adaptation. Read more

fn convert_absolute<TargetCS>(src: [f32; 3]) -> [f32; 3]
where TargetCS: ColorSpace,

Convert to a different color space, without chromatic adaptation. Read more

fn chromatically_adapt( src: [f32; 3], from: Chromaticity, to: Chromaticity, ) -> [f32; 3]

Chromatically adapt the color between the given white point chromaticities. Read more

impl Debug for Lab

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

Formats the value using the given formatter. Read more

impl From<Lab> for ColorSpaceTag

fn from(_: Lab) -> ColorSpaceTag

Converts to this type from the input type.

impl Copy for Lab

Auto Trait Implementations§

impl Freeze for Lab

impl RefUnwindSafe for Lab

impl Send for Lab

impl Sync for Lab

impl Unpin for Lab

impl UnwindSafe for Lab

Blanket Implementations§

impl<S, D, Swp, Dwp, T> AdaptInto<D, Swp, Dwp, T> for S
where T: Real + Zero + Arithmetics + Clone, Swp: WhitePoint<T>, Dwp: WhitePoint<T>, D: AdaptFrom<S, Swp, Dwp, T>,

fn adapt_into_using<M>(self, method: M) -> D
where M: TransformMatrix<T>,

Convert the source color to the destination color using the specified method.

fn adapt_into(self) -> D

Convert the source color to the destination color using the bradford method by default.

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T, C> ArraysFrom<C> for T
where C: IntoArrays<T>,

fn arrays_from(colors: C) -> T

Cast a collection of colors into a collection of arrays.

impl<T, C> ArraysInto<C> for T
where C: FromArrays<T>,

fn arrays_into(self) -> C

Cast this collection of arrays into a collection of colors.

impl<T> Az for T

fn az<Dst>(self) -> Dst
where T: Cast<Dst>,

Casts the value.

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<WpParam, T, U> Cam16IntoUnclamped<WpParam, T> for U
where T: FromCam16Unclamped<WpParam, U>,

type Scalar = <T as FromCam16Unclamped<WpParam, U>>::Scalar

The number type that’s used in parameters when converting.

fn cam16_into_unclamped( self, parameters: BakedParameters<WpParam, <U as Cam16IntoUnclamped<WpParam, T>>::Scalar>, ) -> T

Converts self into C, using the provided parameters.

impl<Src, Dst> CastFrom<Src> for Dst
where Src: Cast<Dst>,

fn cast_from(src: Src) -> Dst

Casts the value.

impl<T> CheckedAs for T

fn checked_as<Dst>(self) -> Option<Dst>
where T: CheckedCast<Dst>,

Casts the value.

impl<Src, Dst> CheckedCastFrom<Src> for Dst
where Src: CheckedCast<Dst>,

fn checked_cast_from(src: Src) -> Option<Dst>

Casts the value.

impl<T> CloneToUninit for T
where T: Clone,

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

impl<T, C> ComponentsFrom<C> for T
where C: IntoComponents<T>,

fn components_from(colors: C) -> T

Cast a collection of colors into a collection of color components.

impl<T> Discard for T

fn discard(&self)

Simply returns ()

impl<T> Downcast<T> for T

fn downcast(&self) -> &T

impl<T> Downcast for T
where T: Any,

fn into_any(self: Box<T>) -> Box<dyn Any>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.

fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.

fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.

fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.

impl<T> DowncastSync for T
where T: Any + Send + Sync,

fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Sync + Send>

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait.

impl<T> DynClone for T
where T: Clone,

fn __clone_box(&self, _: Private) -> *mut ()

impl<T> Filterable for T

fn filterable( self, filter_name: &'static str, ) -> RequestFilterDataProvider<T, fn(DataRequest<'_>) -> bool>

Creates a filterable data provider with the given name for debugging. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> FromAngle<T> for T

fn from_angle(angle: T) -> T

Performs a conversion from angle.

impl<T, U> FromStimulus<U> for T
where U: IntoStimulus<T>,

fn from_stimulus(other: U) -> T

Converts other into Self, while performing the appropriate scaling, rounding and clamping.

impl<T> FuncAnim for T
where T: FuncRequirement + 'static,

fn func(&mut self, f: impl Fn(&T, f64) -> T + 'static) -> AnimationCell<T>

Create a Func anim.

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T, U> IntoAngle<U> for T
where U: FromAngle<T>,

fn into_angle(self) -> U

Performs a conversion into T.

impl<WpParam, T, U> IntoCam16Unclamped<WpParam, T> for U
where T: Cam16FromUnclamped<WpParam, U>,

type Scalar = <T as Cam16FromUnclamped<WpParam, U>>::Scalar

The number type that’s used in parameters when converting.

fn into_cam16_unclamped( self, parameters: BakedParameters<WpParam, <U as IntoCam16Unclamped<WpParam, T>>::Scalar>, ) -> T

Converts self into C, using the provided parameters.

impl<T, U> IntoColor<U> for T
where U: FromColor<T>,

fn into_color(self) -> U

Convert into T with values clamped to the color defined bounds Read more

impl<T, U> IntoColorUnclamped<U> for T
where U: FromColorUnclamped<T>,

fn into_color_unclamped(self) -> U

Convert into T. The resulting color might be invalid in its color space Read more

impl<T> IntoEither for T

fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

impl<T> IntoStimulus<T> for T

fn into_stimulus(self) -> T

Converts self into T, while performing the appropriate scaling, rounding and clamping.

impl<T> OverflowingAs for T

fn overflowing_as<Dst>(self) -> (Dst, bool)
where T: OverflowingCast<Dst>,

Casts the value.

impl<Src, Dst> OverflowingCastFrom<Src> for Dst
where Src: OverflowingCast<Dst>,

fn overflowing_cast_from(src: Src) -> (Dst, bool)

Casts the value.

impl<T> Pointable for T

const ALIGN: usize

The alignment of pointer.

type Init = T

The type for initializers.

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

impl<T> PolicyExt for T
where T: ?Sized,

fn and<P, B, E>(self, other: P) -> And<T, P>
where T: Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns [Action::Follow] only if self and other return Action::Follow. Read more

fn or<P, B, E>(self, other: P) -> Or<T, P>
where T: Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns [Action::Follow] if either self or other returns Action::Follow. Read more

impl<T> Same for T

type Output = T

Should always be Self

impl<T> SaturatingAs for T

fn saturating_as<Dst>(self) -> Dst
where T: SaturatingCast<Dst>,

Casts the value.

impl<Src, Dst> SaturatingCastFrom<Src> for Dst
where Src: SaturatingCast<Dst>,

fn saturating_cast_from(src: Src) -> Dst

Casts the value.

impl<T> StaticAnim for T
where T: StaticAnimRequirement + 'static,

fn show(&self) -> AnimationCell<T>

Show the item

fn hide(&self) -> AnimationCell<T>

Hide the item

impl<T> StrictAs for T

fn strict_as<Dst>(self) -> Dst
where T: StrictCast<Dst>,

Casts the value.

impl<Src, Dst> StrictCastFrom<Src> for Dst
where Src: StrictCast<Dst>,

fn strict_cast_from(src: Src) -> Dst

Casts the value.

impl<T> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T, C> TryComponentsInto<C> for T
where C: TryFromComponents<T>,

type Error = <C as TryFromComponents<T>>::Error

The error for when try_into_colors fails to cast.

fn try_components_into(self) -> Result<C, <T as TryComponentsInto<C>>::Error>

Try to cast this collection of color components into a collection of colors. Read more

impl<T, U> TryFrom<U> for T
where 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>

Performs the conversion.

impl<T, U> TryInto<U> for T
where 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>

Performs the conversion.

impl<T, U> TryIntoColor<U> for T
where U: TryFromColor<T>,

fn try_into_color(self) -> Result<U, OutOfBounds<U>>

Convert into T, returning ok if the color is inside of its defined range, otherwise an OutOfBounds error is returned which contains the unclamped color. Read more

impl<C, U> UintsFrom<C> for U
where C: IntoUints<U>,

fn uints_from(colors: C) -> U

Cast a collection of colors into a collection of unsigned integers.

impl<C, U> UintsInto<C> for U
where C: FromUints<U>,

fn uints_into(self) -> C

Cast this collection of unsigned integers into a collection of colors.

impl<T> UnwrappedAs for T

fn unwrapped_as<Dst>(self) -> Dst
where T: UnwrappedCast<Dst>,

Casts the value.

impl<Src, Dst> UnwrappedCastFrom<Src> for Dst
where Src: UnwrappedCast<Dst>,

fn unwrapped_cast_from(src: Src) -> Dst

Casts the value.

impl<T> Upcast<T> for T

fn upcast(&self) -> Option<&T>

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

fn vzip(self) -> V

impl<T> With for T

fn with(self, f: impl Fn(&mut Self)) -> Self
where Self: Sized,

Mutating a value in place

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more

impl<T> WrappingAs for T

fn wrapping_as<Dst>(self) -> Dst
where T: WrappingCast<Dst>,

Casts the value.

impl<Src, Dst> WrappingCastFrom<Src> for Dst
where Src: WrappingCast<Dst>,

fn wrapping_cast_from(src: Src) -> Dst

Casts the value.

impl<T> ErasedDestructor for T
where T: 'static,

impl<T> ErasedDestructor for T
where T: 'static,

impl<T> FuncRequirement for T
where T: Clone,

impl<T> MaybeSendSync for T
where T: Send + Sync,

impl<T> SerializableAny for T
where T: 'static + Any + Clone + for<'a> Send + Sync,

impl<T> StaticAnimRequirement for T
where T: Clone,

impl<T> WasmNotSend for T
where T: Send,

impl<T> WasmNotSendSync for T
where T: WasmNotSend + WasmNotSync,

impl<T> WasmNotSync for T
where T: Sync,