Struct PyramidLevel 

pub struct PyramidLevel {
    pub data: Vec<u8>,
    pub width: usize,
    pub height: usize,
    pub stride: usize,
    pub scale: usize,
}

A single level of the image pyramid.

Fields

data: Vec<u8>

Pixel data.

width: usize

Width in pixels.

height: usize

Height in pixels.

stride: usize

Stride (bytes per row).

scale: usize

Scale factor from original (1, 2, 4, …).

Implementations

impl PyramidLevel

pub fn new(width: usize, height: usize, scale: usize) -> Self

Creates a new pyramid level.

pub fn from_data( data: Vec<u8>, width: usize, height: usize, scale: usize, ) -> Self

Creates a pyramid level from existing data.

pub fn get_pixel(&self, x: usize, y: usize) -> u8

Gets the pixel value at (x, y).

pub fn set_pixel(&mut self, x: usize, y: usize, value: u8)

Sets the pixel value at (x, y).

pub fn downsample_from(&mut self, src: &PyramidLevel)

Downsamples from another level (2:1).

pub fn block_data(&self, x: usize, y: usize) -> &[u8]

Returns a slice of data for a block.

Trait Implementations

impl Clone for PyramidLevel

fn clone(&self) -> PyramidLevel

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PyramidLevel

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

Formats the value using the given formatter.