Struct Region 

pub struct Region {
    pub x0: usize,
    pub x1: usize,
    pub y0: usize,
    pub y1: usize,
}

An inclusive pixel rectangle. Grouping the four bounds keeps the scan signatures readable — they were long enough that clippy flagged them, and the bounds always travel together anyway.

Fields

x0: usize

First column.

x1: usize

Last column (inclusive).

y0: usize

First row.

y1: usize

Last row (inclusive).

Implementations

impl Region

pub fn whole(img: &ImageBuffer) -> Self

The whole frame. The image must be at least 1×1.

pub fn inset(img: &ImageBuffer) -> Self

The frame minus a one-pixel border, which is what the star scan wants: the hot-pixel test reads a neighbour on each side. The image must be at least 3×3.

pub fn with_rows(self, y0: usize, y1: usize) -> Self

The same rectangle with a different row range.

pub fn rows(&self) -> usize

Number of rows covered.

Trait Implementations

impl Clone for Region

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Region

impl Debug for Region

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

Formats the value using the given formatter.