Trait rgb::ComponentMap

pub trait ComponentMap<DestPixel, SrcComponent, DestComponent> {
    fn map<Callback>(&self, f: Callback) -> DestPixel
    where
        Callback: FnMut(SrcComponent) -> DestComponent;
}

Applying operation to every component

let inverted = pixel.map(|c| 255 - c);

For simple math there are Add/Sub/Mul implementations:
let halved = pixel.map(|c| c / 2);
let halved = pixel / 2;

Required methods

fn map<Callback>(&self, f: Callback) -> DestPixel where
    Callback: FnMut(SrcComponent) -> DestComponent, 

Convenience function (equivalent of self.iter().map().collect()) for applying the same formula to every component.

Note that it returns the pixel directly, not an Interator.

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Implementors

impl<T: Copy, B> ComponentMap<BGR<B>, T, B> for BGR<T>

fn map<F>(&self, f: F) -> BGR<B> where     F: FnMut(T) -> B,

impl<T: Copy, B> ComponentMap<BGRA<B, B>, T, B> for BGRA<T>

fn map<F>(&self, f: F) -> BGRA<B> where     F: FnMut(T) -> B,

impl<T: Copy, B> ComponentMap<GrayAlpha<B, B>, T, B> for GrayAlpha<T>

fn map<F>(&self, f: F) -> GrayAlpha<B> where     F: FnMut(T) -> B,

impl<T: Copy, B> ComponentMap<RGB<B>, T, B> for RGB<T>

fn map<F>(&self, f: F) -> RGB<B> where     F: FnMut(T) -> B,

impl<T: Copy, B> ComponentMap<RGBA<B, B>, T, B> for RGBA<T>

fn map<F>(&self, f: F) -> RGBA<B> where     F: FnMut(T) -> B,

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