Enum ScaleAlgorithm 

pub enum ScaleAlgorithm {
    Nearest,
    Bilinear,
    Bicubic,
    CatmullRom,
    Lanczos2,
    Lanczos3,
    Lanczos4,
}

Scaling algorithm for image resampling.

Variants

Nearest

Nearest neighbor - fastest, lowest quality, good for pixel art.

Bilinear

Bilinear interpolation - fast, moderate quality.

Bicubic

Bicubic interpolation using Mitchell-Netravali coefficients.

CatmullRom

Bicubic interpolation using Catmull-Rom spline.

Lanczos2

Lanczos-2 - high quality, 2-tap sinc window.

Lanczos3

Lanczos-3 - higher quality, 3-tap sinc window.

Lanczos4

Lanczos-4 - highest quality, 4-tap sinc window.

Implementations

impl ScaleAlgorithm

pub fn support(&self) -> f64

Get the filter support (radius in source pixels).

pub fn kernel(&self, x: f64) -> f64

Calculate the kernel value at position x.

Trait Implementations

impl Clone for ScaleAlgorithm

fn clone(&self) -> ScaleAlgorithm

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ScaleAlgorithm

impl Debug for ScaleAlgorithm

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ScaleAlgorithm

fn default() -> ScaleAlgorithm

Returns the “default value” for a type.

impl Eq for ScaleAlgorithm

impl PartialEq for ScaleAlgorithm

fn eq(&self, other: &ScaleAlgorithm) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for ScaleAlgorithm