Enum image::imageops::FilterType
source · [−]pub enum FilterType {
Nearest,
Triangle,
CatmullRom,
Gaussian,
Lanczos3,
}
Expand description
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
Nearest Neighbor
Triangle
Linear Filter
CatmullRom
Cubic Filter
Gaussian
Gaussian Filter
Lanczos3
Lanczos with window 3
Trait Implementations
sourceimpl Clone for FilterType
impl Clone for FilterType
sourcefn clone(&self) -> FilterType
fn clone(&self) -> FilterType
Returns a copy of the value. Read more
1.0.0 · sourcefn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source
. Read more
sourceimpl Debug for FilterType
impl Debug for FilterType
sourceimpl PartialEq<FilterType> for FilterType
impl PartialEq<FilterType> for FilterType
impl Copy for FilterType
impl StructuralPartialEq for FilterType
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
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcepub fn borrow_mut(&mut self) -> &mut T
pub fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> Pointable for T
impl<T> Pointable for T
sourceimpl<T> ToOwned for T where
T: Clone,
impl<T> ToOwned for T where
T: Clone,
type Owned = T
type Owned = T
The resulting type after obtaining ownership.
sourcepub fn to_owned(&self) -> T
pub fn to_owned(&self) -> T
Creates owned data from borrowed data, usually by cloning. Read more
sourcepub fn clone_into(&self, target: &mut T)
pub fn clone_into(&self, target: &mut T)
toowned_clone_into
)Uses borrowed data to replace owned data, usually by cloning. Read more