Struct image::LumaA

#[repr(C)]
pub struct LumaA<T: Primitive> {
    pub data: [T; 2],
}

Grayscale colors + alpha channel

Fields

data: [T; 2]

Trait Implementations

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

fn eq(&self, __arg_0: &LumaA<T>) -> bool

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

fn ne(&self, __arg_0: &LumaA<T>) -> bool

This method tests for !=.

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

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

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

Returns a copy of the value.

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

Performs copy-assignment from source.

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

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

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

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

fn hash<__HT: Hasher>(&self, __arg_0: &mut __HT)

Feeds this value into the given [Hasher].

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

Feeds a slice of this type into the given [Hasher].

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

type Subpixel = T

The underlying subpixel type.

fn channel_count() -> u8

Returns the number of channels of this pixel type.

fn color_model() -> &'static str

Returns a string that can help to interprete the meaning each channel See gimp babl.

fn color_type() -> ColorType

Returns the ColorType for this pixel format

Important traits for &'a [u8]

impl<'a> Read for &'a [u8]impl<'a> Write for &'a mut [u8]

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

Returns the components as a slice.

Important traits for &'a [u8]

impl<'a> Read for &'a [u8]impl<'a> Write for &'a mut [u8]

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

Returns the components as a mutable slice

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

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

fn from_slice<'a>(slice: &'a [T]) -> &'a LumaA<T>

Returns a view into a slice.

fn from_slice_mut<'a>(slice: &'a mut [T]) -> &'a mut LumaA<T>

Returns mutable view into a mutable slice.

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

Convert this pixel to RGB

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

Convert this pixel to RGB with an alpha channel

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

Convert this pixel to luma

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

Convert this pixel to luma with an alpha channel

fn map<F>(&self, f: F) -> LumaA<T> where
    F: Fn(T) -> T, 

Apply the function f to each channel of this pixel.

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

Apply the function f to each channel of this pixel.

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

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

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

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

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

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

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

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

fn invert(&mut self)

Invert this pixel

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

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

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

type Output = T

The returned type after indexing.

Important traits for &'a mut R

impl<'a, R> Read for &'a mut R where
    R: Read + ?Sized, impl<'a, W> Write for &'a mut W where
    W: Write + ?Sized, impl<'a, I> Iterator for &'a mut I where
    I: Iterator + ?Sized,  type Item = <I as Iterator>::Item;

fn index<'a>(&'a self, _index: usize) -> &'a T

Performs the indexing (container[index]) operation.

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

Important traits for &'a mut R

impl<'a, R> Read for &'a mut R where
    R: Read + ?Sized, impl<'a, W> Write for &'a mut W where
    W: Write + ?Sized, impl<'a, I> Iterator for &'a mut I where
    I: Iterator + ?Sized,  type Item = <I as Iterator>::Item;

fn index_mut<'a>(&'a mut self, _index: usize) -> &'a mut T

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