Struct pic_scale::LinearApproxScaler

pub struct LinearApproxScaler { /* private fields */ }

Linearize image into u8, scale and then convert it back. It’s much faster than scale in f32, however involves some precision loss

Implementations

impl LinearApproxScaler

pub fn new(filter: ResamplingFunction) -> Self

Creates new instance with sRGB transfer function

pub fn new_with_transfer( filter: ResamplingFunction, transfer_function: TransferFunction, ) -> Self

Creates new instance with provided transfer function

Trait Implementations

impl Clone for LinearApproxScaler

fn clone(&self) -> LinearApproxScaler

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for LinearApproxScaler

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

Formats the value using the given formatter.

impl<'a> Scaling for LinearApproxScaler

fn set_threading_policy(&mut self, threading_policy: ThreadingPolicy)

fn resize_rgb( &self, new_size: ImageSize, store: ImageStore<'_, u8, 3>, ) -> ImageStore<'_, u8, 3>

Performs rescaling for RGB, channel order does not matter

fn resize_rgb_f32( &self, new_size: ImageSize, store: ImageStore<'_, f32, 3>, ) -> ImageStore<'_, f32, 3>

Performs rescaling for RGB f32, channel order does not matter

fn resize_rgba( &self, new_size: ImageSize, store: ImageStore<'_, u8, 4>, is_alpha_premultiplied: bool, ) -> ImageStore<'_, u8, 4>

Performs rescaling for RGBA, for pre-multiplying alpha, converting to LUV or LAB alpha must be last channel

fn resize_rgba_f32( &self, new_size: ImageSize, store: ImageStore<'_, f32, 4>, ) -> ImageStore<'_, f32, 4>

Performs rescaling for RGBA f32

impl Copy for LinearApproxScaler