Struct Stats 

#[non_exhaustive]
pub struct Stats {
    pub channels: Vec<ChannelStats>,
    pub is_opaque: bool,
    pub entropy: f64,
    pub sharpness: f64,
    pub dominant: [u8; 3],
}

Pixel statistics of an image (sharp’s stats()), in its own sample scale: 0–255 for 8-bit, 0–65535 for 16-bit, 0–1 for float.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

channels: Vec<ChannelStats>

Each channel, alpha included, in order.

is_opaque: bool

No alpha channel, or every alpha sample opaque.

entropy: f64

Shannon entropy, in bits, of the greyscale histogram.

sharpness: f64

The standard deviation of the greyscale Laplacian: higher is sharper.

dominant: [u8; 3]

The most common sRGB colour, by a 16-level-per-channel histogram, each channel the centre of its bin.

Implementations

impl Stats

pub fn of(descriptor: &ImageDescriptor, pixels: &[u8]) -> Self

Measure pixels, packed as descriptor lays them out.

Trait Implementations

impl Clone for Stats

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Stats

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

Formats the value using the given formatter.

impl PartialEq for Stats

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Stats