#[cfg(feature = "contrast-aert")]
pub mod aert;
#[cfg(feature = "contrast-apca")]
pub mod apca;
#[cfg(feature = "contrast-michelson")]
pub mod michelson;
#[cfg(feature = "contrast-rms")]
pub mod rms;
#[cfg(feature = "contrast-wcag")]
pub mod wcag;
#[cfg(feature = "contrast-weber")]
pub mod weber;