Enum image::ExtendedColorType [−][src]
An enumeration of color types encountered in image formats.
This is not exhaustive over all existing image formats but should be granular enough to allow round tripping of decoding and encoding as much as possible. The variants will be extended as necessary to enable this.
Another purpose is to advise users of a rough estimate of the accuracy and effort of the decoding from and encoding to such an image format.
Variants
Pixel is 1-bit luminance
Pixel is 1-bit luminance with an alpha channel
Pixel contains 1-bit R, G and B channels
Pixel is 1-bit RGB with an alpha channel
Pixel is 2-bit luminance
Pixel is 2-bit luminance with an alpha channel
Pixel contains 2-bit R, G and B channels
Pixel is 2-bit RGB with an alpha channel
Pixel is 4-bit luminance
Pixel is 4-bit luminance with an alpha channel
Pixel contains 4-bit R, G and B channels
Pixel is 4-bit RGB with an alpha channel
Pixel is 8-bit luminance
Pixel is 8-bit luminance with an alpha channel
Pixel contains 8-bit R, G and B channels
Pixel is 8-bit RGB with an alpha channel
Pixel is 16-bit luminance
Pixel is 16-bit luminance with an alpha channel
Pixel contains 16-bit R, G and B channels
Pixel is 16-bit RGB with an alpha channel
Pixel contains 8-bit B, G and R channels
Pixel is 8-bit BGR with an alpha channel
Unknown(u8)
Pixel is of unknown color type with the specified bits per pixel. This can apply to pixels which are associated with an external palette. In that case, the pixel value is an index into the palette.
Implementations
impl ExtendedColorType
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pub fn channel_count(self) -> u8
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Get the number of channels for colors of this type.
Note that the Unknown
variant returns a value of 1
since pixels can only be treated as
an opaque datum by the library.
Trait Implementations
impl Clone for ExtendedColorType
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fn clone(&self) -> ExtendedColorType
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pub fn clone_from(&mut self, source: &Self)
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impl Copy for ExtendedColorType
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impl Debug for ExtendedColorType
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impl Eq for ExtendedColorType
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impl From<ColorType> for ExtendedColorType
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impl Hash for ExtendedColorType
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fn hash<__H: Hasher>(&self, state: &mut __H)
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pub fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
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H: Hasher,
impl PartialEq<ExtendedColorType> for ExtendedColorType
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fn eq(&self, other: &ExtendedColorType) -> bool
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fn ne(&self, other: &ExtendedColorType) -> bool
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impl StructuralEq for ExtendedColorType
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impl StructuralPartialEq for ExtendedColorType
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Auto Trait Implementations
impl RefUnwindSafe for ExtendedColorType
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impl Send for ExtendedColorType
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impl Sync for ExtendedColorType
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impl Unpin for ExtendedColorType
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impl UnwindSafe for ExtendedColorType
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Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> Pointable for T
pub const ALIGN: usize
type Init = T
The type for initializers.
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,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn clone_into(&self, target: &mut T)
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impl<T, U> TryFrom<U> 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.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,