devela::_dep::image::imageops

Function unsharpen

pub fn unsharpen<I, P, S>(
    image: &I,
    sigma: f32,
    threshold: i32,
) -> ImageBuffer<P, Vec<S>>
where
    I: GenericImageView<Pixel = P>,
    P: Pixel<Subpixel = S> + 'static,
    S: Primitive + 'static,
Available on crate feature dep_image only.
Expand description

Performs an unsharpen mask on the supplied image. sigma is the amount to blur the image by. threshold is the threshold for minimal brightness change that will be sharpened.

See https://en.wikipedia.org/wiki/Unsharp_masking#Digital_unsharp_masking