Function image::imageops::thumbnail

pub fn thumbnail<I, P, S>(
    image: &I, 
    new_width: u32, 
    new_height: u32
) -> ImageBuffer<P, Vec<S>> where
    I: GenericImage<Pixel = P>,
    P: Pixel<Subpixel = S> + 'static,
    S: Primitive + Enlargeable + 'static, 

Resize the supplied image down to the specific dimensions.