captcha/filters/mod.rs
//! Filters to disturb and transform CAPTCHAs.
mod cow;
mod dots;
mod grid;
mod noise;
mod wave;
use images::Image;
// reexports
pub use filters::cow::Cow;
pub use filters::dots::Dots;
pub use filters::grid::Grid;
pub use filters::noise::Noise;
pub use filters::wave::Wave;
pub trait Filter {
fn apply(&self, i: &mut Image);
}