Enum image::imageops::FilterType [−][src]
pub enum FilterType { Nearest, Triangle, CatmullRom, Gaussian, Lanczos3, }
Available Sampling Filters.
Examples
To test the different sampling filters on a real example, you can find two
examples called
scaledown
and
scaleup
in the examples
directory of the crate source code.
Here is a 3.58 MiB test image that has been scaled down to 300x225 px:

Nearest Neighbor

Linear: Triangle

Cubic: Catmull-Rom

Gaussian

Lanczos with window 3
Speed
Time required to create each of the examples above, tested on an Intel i7-4770 CPU with Rust 1.37 in release mode:
Nearest | 31 ms |
---|---|
Triangle | 414 ms |
CatmullRom | 817 ms |
Gaussian | 1180 ms |
Lanczos3 | 1170 ms |
Variants
Nearest Neighbor
Linear Filter
Cubic Filter
Gaussian Filter
Lanczos with window 3
Trait Implementations
impl Clone for FilterType
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fn clone(&self) -> FilterType
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pub fn clone_from(&mut self, source: &Self)
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impl Copy for FilterType
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impl Debug for FilterType
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impl PartialEq<FilterType> for FilterType
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fn eq(&self, other: &FilterType) -> bool
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#[must_use]pub fn ne(&self, other: &Rhs) -> bool
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#[must_use]
pub fn ne(&self, other: &Rhs) -> boolimpl StructuralPartialEq for FilterType
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Auto Trait Implementations
impl RefUnwindSafe for FilterType
impl Send for FilterType
impl Sync for FilterType
impl Unpin for FilterType
impl UnwindSafe for FilterType
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
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pub const ALIGN: usize
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type Init = T
The type for initializers.
pub unsafe fn init(init: <T as Pointable>::Init) -> usize
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pub unsafe fn deref<'a>(ptr: usize) -> &'a T
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pub unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T
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pub unsafe fn drop(ptr: usize)
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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>,