Struct Resize 

pub struct Resize { /* private fields */ }

Resample an image to a new size.

Implementations

impl Resize

pub fn new( width: u32, height: u32, options: ResizeOptions, ) -> Result<Resize, PixelsError>

Resize to width by height with options.

Errors

Returns PixelsError::InvalidArgument if either dimension is zero.

pub fn to(width: u32, height: u32) -> Result<Resize, PixelsError>

Resize to width by height with the default filter and fit.

Errors

As Resize::new.

pub const fn options(&self) -> ResizeOptions

The options this op was built with.

pub fn target(&self, input: &ImageDescriptor) -> (u32, u32)

The output size for a given input, after fit and enlargement rules.

Computed rather than stored, because the requested box is a constraint and the answer depends on the input the op is eventually chained onto.

Trait Implementations

impl Clone for Resize

fn clone(&self) -> Resize

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Resize

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

Formats the value using the given formatter.

impl Op for Resize

fn rescaled(&self) -> Option<Arc<dyn Op>>

Resize pins its own output size, so a smaller input reaches the same answer with less work. This is the op shrink-on-load exists for.

The clone drops the filter tables, which are bound to the input shape they were first built for — reusing them against a reduced source is exactly the resample-at-the-wrong-scale this guards against.

fn name(&self) -> &'static str

A short, stable name for this op, used in diagnostics.

fn output_descriptor( &self, inputs: &[ImageDescriptor], ) -> Result<ImageDescriptor, PixelsError>

Compute the output shape from the input shapes.

fn input_regions( &self, output: Region, inputs: &[ImageDescriptor], ) -> Result<Vec<Region>, PixelsError>

The input regions needed to produce output.

fn access_pattern(&self) -> AccessPattern

How this op reads its inputs; drives tile negotiation (ADR-0003).

fn compute( &self, inputs: &[Tile<'_>], output: &mut TileMut<'_>, ) -> Result<(), PixelsError>

Fill output from inputs — the kernel entry point.

fn arity(&self) -> usize

The number of inputs this op consumes.