[−][src]Enum lodepng::ffi::FilterStrategy
automatically use color type with less bits per pixel if losslessly possible. Default: AUTO
Variants
every filter at zero
Use filter that gives minumum sum, as described in the official PNG filter heuristic.
Use the filter type that gives smallest Shannon entropy for this scanline. Depending on the image, this is better or worse than minsum.
Brute-force-search PNG filters by compressing each filter for each scanline. Experimental, very slow, and only rarely gives better compression than MINSUM.
use predefined_filters buffer: you specify the filter type for each scanline
Trait Implementations
impl Clone for FilterStrategy
[src]
pub fn clone(&self) -> FilterStrategy
[src]
pub fn clone_from(&mut self, source: &Self)
1.0.0[src]
impl Copy for FilterStrategy
[src]
impl Debug for FilterStrategy
[src]
impl Eq for FilterStrategy
[src]
impl PartialEq<FilterStrategy> for FilterStrategy
[src]
pub fn eq(&self, other: &FilterStrategy) -> bool
[src]
#[must_use]pub fn ne(&self, other: &Rhs) -> bool
1.0.0[src]
impl StructuralEq for FilterStrategy
[src]
impl StructuralPartialEq for FilterStrategy
[src]
Auto Trait Implementations
impl RefUnwindSafe for FilterStrategy
[src]
impl Send for FilterStrategy
[src]
impl Sync for FilterStrategy
[src]
impl Unpin for FilterStrategy
[src]
impl UnwindSafe for FilterStrategy
[src]
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
[src]
T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
[src]
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
[src]
T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
[src]
impl<T> From<T> for T
[src]
impl<T, U> Into<U> for T where
U: From<T>,
[src]
U: From<T>,
impl<T> ToOwned for T where
T: Clone,
[src]
T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
[src]
pub fn clone_into(&self, target: &mut T)
[src]
impl<T, U> TryFrom<U> for T where
U: Into<T>,
[src]
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>
[src]
impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
[src]
U: TryFrom<T>,