Struct image::Luma

source ·
#[repr(transparent)]
pub struct Luma<T>(pub [T; 1]);
Expand description

Grayscale colors.

Tuple Fields§

§0: [T; 1]

Trait Implementations§

source§

impl<T: Clone> Clone for Luma<T>

source§

fn clone(&self) -> Luma<T>

Returns a copy of the value. Read more
1.0.0 · source§

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

Performs copy-assignment from source. Read more
source§

impl<T: Debug> Debug for Luma<T>

source§

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

Formats the value using the given formatter. Read more
source§

impl<T> From<[T; 1]> for Luma<T>

source§

fn from(c: [T; 1]) -> Self

Converts to this type from the input type.
source§

impl<T: Hash> Hash for Luma<T>

source§

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
1.3.0 · source§

fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
source§

impl<T> Index<usize> for Luma<T>

§

type Output = T

The returned type after indexing.
source§

fn index(&self, _index: usize) -> &T

Performs the indexing (container[index]) operation. Read more
source§

impl<T> IndexMut<usize> for Luma<T>

source§

fn index_mut(&mut self, _index: usize) -> &mut T

Performs the mutable indexing (container[index]) operation. Read more
source§

impl<T: PartialEq> PartialEq for Luma<T>

source§

fn eq(&self, other: &Luma<T>) -> bool

This method tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
source§

impl<T: Primitive> Pixel for Luma<T>

§

type Subpixel = T

The scalar type that is used to store each channel in this pixel.
source§

const CHANNEL_COUNT: u8 = 1u8

The number of channels of this pixel type.
source§

fn channels(&self) -> &[T]

Returns the components as a slice.
source§

fn channels_mut(&mut self) -> &mut [T]

Returns the components as a mutable slice
source§

const COLOR_MODEL: &'static str = "Y"

A string that can help to interpret the meaning each channel See gimp babl.
source§

fn channels4(&self) -> (T, T, T, T)

👎Deprecated since 0.24.0: Use channels() or channels_mut()
Returns the channels of this pixel as a 4 tuple. If the pixel has less than 4 channels the remainder is filled with the maximum value
source§

fn from_channels(a: T, b: T, c: T, d: T) -> Luma<T>

👎Deprecated since 0.24.0: Use the constructor of the pixel, for example Rgba([r,g,b,a]) or Pixel::from_slice
Construct a pixel from the 4 channels a, b, c and d. If the pixel does not contain 4 channels the extra are ignored.
source§

fn from_slice(slice: &[T]) -> &Luma<T>

Returns a view into a slice. Read more
source§

fn from_slice_mut(slice: &mut [T]) -> &mut Luma<T>

Returns mutable view into a mutable slice. Read more
source§

fn to_rgb(&self) -> Rgb<T>

Convert this pixel to RGB
source§

fn to_rgba(&self) -> Rgba<T>

Convert this pixel to RGB with an alpha channel
source§

fn to_luma(&self) -> Luma<T>

Convert this pixel to luma
source§

fn to_luma_alpha(&self) -> LumaA<T>

Convert this pixel to luma with an alpha channel
source§

fn map<F>(&self, f: F) -> Luma<T>
where F: FnMut(T) -> T,

Apply the function f to each channel of this pixel.
source§

fn apply<F>(&mut self, f: F)
where F: FnMut(T) -> T,

Apply the function f to each channel of this pixel.
source§

fn map_with_alpha<F, G>(&self, f: F, g: G) -> Luma<T>
where F: FnMut(T) -> T, G: FnMut(T) -> T,

Apply the function f to each channel except the alpha channel. Apply the function g to the alpha channel.
source§

fn apply_with_alpha<F, G>(&mut self, f: F, g: G)
where F: FnMut(T) -> T, G: FnMut(T) -> T,

Apply the function f to each channel except the alpha channel. Apply the function g to the alpha channel. Works in-place.
source§

fn map2<F>(&self, other: &Self, f: F) -> Luma<T>
where F: FnMut(T, T) -> T,

Apply the function f to each channel of this pixel and other pairwise.
source§

fn apply2<F>(&mut self, other: &Luma<T>, f: F)
where F: FnMut(T, T) -> T,

Apply the function f to each channel of this pixel and other pairwise. Works in-place.
source§

fn invert(&mut self)

Invert this pixel
source§

fn blend(&mut self, other: &Luma<T>)

Blend the color of a given pixel into ourself, taking into account alpha channels
source§

fn map_without_alpha<F>(&self, f: F) -> Self
where F: FnMut(Self::Subpixel) -> Self::Subpixel,

Apply the function f to each channel except the alpha channel.
source§

fn apply_without_alpha<F>(&mut self, f: F)
where F: FnMut(Self::Subpixel) -> Self::Subpixel,

Apply the function f to each channel except the alpha channel. Works in place.
source§

impl PixelWithColorType for Luma<u16>

source§

const COLOR_TYPE: ExtendedColorType = ExtendedColorType::L16

This pixel has the format of one of the predefined ColorTypes, such as Rgb8, La16 or Rgba32F. This is needed for automatically detecting a color format when saving an image as a file.
source§

impl PixelWithColorType for Luma<u8>

source§

const COLOR_TYPE: ExtendedColorType = ExtendedColorType::L8

This pixel has the format of one of the predefined ColorTypes, such as Rgb8, La16 or Rgba32F. This is needed for automatically detecting a color format when saving an image as a file.
source§

impl<T: Copy> Copy for Luma<T>

source§

impl<T: Eq> Eq for Luma<T>

source§

impl<T> StructuralPartialEq for Luma<T>

Auto Trait Implementations§

§

impl<T> RefUnwindSafe for Luma<T>
where T: RefUnwindSafe,

§

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

§

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

§

impl<T> Unpin for Luma<T>
where T: Unpin,

§

impl<T> UnwindSafe for Luma<T>
where T: UnwindSafe,

Blanket Implementations§

source§

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

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
source§

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

source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

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

source§

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

Mutably borrows from an owned value. Read more
source§

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

source§

fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
source§

impl<T> From<T> for T

source§

fn from(t: T) -> T

Returns the argument unchanged.

source§

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

source§

fn into(self) -> U

Calls U::from(self).

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

source§

impl<T> Pointable for T

source§

const ALIGN: usize = _

The alignment of pointer.
§

type Init = T

The type for initializers.
source§

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

Initializes a with the given initializer. Read more
source§

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

Dereferences the given pointer. Read more
source§

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

Mutably dereferences the given pointer. Read more
source§

unsafe fn drop(ptr: usize)

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

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

§

type Owned = T

The resulting type after obtaining ownership.
source§

fn to_owned(&self) -> T

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

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

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

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

§

type Error = Infallible

The type returned in the event of a conversion error.
source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
source§

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.
source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.