Struct image::Luma

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#[repr(C)]
pub struct Luma<T: Primitive>(pub [T; 1]);

Expand description

Grayscale colors

Tuple Fields

0: [T; 1]

Trait Implementations

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

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

Returns a copy of the value. Read more

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

Performs copy-assignment from source. Read more

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

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

Formats the value using the given formatter. Read more

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impl<T: Primitive + 'static> From<[T; 1]> for Luma<T>

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

Performs the conversion.

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

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

Feeds this value into the given Hasher. Read more

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

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

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

type Output = T

The returned type after indexing.

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

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

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

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

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

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

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

This method tests for self and other values to be equal, and is used by ==. Read more

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

This method tests for !=.

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impl<T: Primitive + 'static> Pixel for Luma<T>

type Subpixel = T

The underlying subpixel type.

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const CHANNEL_COUNT: u8

The number of channels of this pixel type.

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const COLOR_MODEL: &'static str

A string that can help to interpret the meaning each channel See gimp babl. Read more

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const COLOR_TYPE: ColorType

ColorType for this pixel format

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fn channels(&self) -> &[T]ⓘNotable traits for &'_ [u8 ]`impl<'_> Read for &'_ [u8]impl<'_> Write for &'_ mut [u8]`

Returns the components as a slice.

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fn channels_mut(&mut self) -> &mut [T]ⓘNotable traits for &'_ [u8 ]`impl<'_> Read for &'_ [u8]impl<'_> Write for &'_ mut [u8]`

Returns the components as a mutable slice

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

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 Read more

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

Construct a pixel from the 4 channels a, b, c and d. If the pixel does not contain 4 channels the extra are ignored. Read more

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

Returns a view into a slice. Read more

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

Returns mutable view into a mutable slice. Read more

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

Convert this pixel to RGB

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fn to_bgr(&self) -> Bgr<T>

Convert this pixel to BGR

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

Convert this pixel to RGB with an alpha channel

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fn to_bgra(&self) -> Bgra<T>

Convert this pixel to BGR with an alpha channel

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

Convert this pixel to luma

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

Convert this pixel to luma with an alpha channel

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

Apply the function f to each channel of this pixel.

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

Apply the function f to each channel of this pixel.

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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. Read more

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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. Read more

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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. Read more

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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. Read more

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fn invert(&mut self)

Invert this pixel

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

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

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fn channel_count() -> u8

👎 Deprecated:

please use CHANNEL_COUNT associated constant

Returns the number of channels of this pixel type.

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fn color_model() -> &'static str

👎 Deprecated:

please use COLOR_MODEL associated constant

Returns a string that can help to interpret the meaning each channel See gimp babl. Read more

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fn color_type() -> ColorType

👎 Deprecated:

please use COLOR_TYPE associated constant

Returns the ColorType for this pixel format

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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.

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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. Read more

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impl<T: Primitive> 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

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

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pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

const: unstable · source

pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

const: unstable · source

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

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

const: unstable · source

pub fn from(t: T) -> T

Returns the argument unchanged.

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

const: unstable · source

pub fn into(self) -> U

Calls U::from(self).

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

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impl<T> Pointable for T

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pub const ALIGN: usize

The alignment of pointer.

type Init = T

The type for initializers.

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

Initializes a with the given initializer. Read more

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

Dereferences the given pointer. Read more

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

Mutably dereferences the given pointer. Read more

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pub unsafe fn drop(ptr: usize)

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

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

type Owned = T

The resulting type after obtaining ownership.

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pub fn to_owned(&self) -> T

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

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

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

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

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

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

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

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Struct image::Luma

Tuple Fields

Trait Implementations

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

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

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

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

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

impl<T: Primitive + 'static> From<[T; 1]> for Luma<T>

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

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

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

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

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

type Output = T

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

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

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

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

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

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

impl<T: Primitive + 'static> Pixel for Luma<T>

type Subpixel = T

const CHANNEL_COUNT: u8

const COLOR_MODEL: &'static str

const COLOR_TYPE: ColorType

fn channels(&self) -> &[T]ⓘNotable traits for &'_ [u8]impl<'_> Read for &'_ [u8]impl<'_> Write for &'_ mut [u8]

fn channels_mut(&mut self) -> &mut [T]ⓘNotable traits for &'_ [u8]impl<'_> Read for &'_ [u8]impl<'_> Write for &'_ mut [u8]

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

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

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

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

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

fn to_bgr(&self) -> Bgr<T>

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

fn to_bgra(&self) -> Bgra<T>

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

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

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

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

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

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

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

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

fn invert(&mut self)

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

fn channel_count() -> u8

fn color_model() -> &'static str

fn color_type() -> ColorType

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

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

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

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

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

impl<T: Primitive> 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

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

pub fn type_id(&self) -> TypeId

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

pub fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

pub fn from(t: T) -> T

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

pub fn into(self) -> U

impl<T> Pointable for T

pub const ALIGN: usize

type Init = T

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

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

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

pub unsafe fn drop(ptr: usize)

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

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

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

fn channels(&self) -> &[T]ⓘNotable traits for &'_ [u8 ]`impl<'_> Read for &'_ [u8]impl<'_> Write for &'_ mut [u8]`

fn channels_mut(&mut self) -> &mut [T]ⓘNotable traits for &'_ [u8 ]`impl<'_> Read for &'_ [u8]impl<'_> Write for &'_ mut [u8]`

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

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

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

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

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

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

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

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

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,

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

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

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

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

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

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

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