image::imageops::sample

Function thumbnail_sample_block

Source 
fn thumbnail_sample_block<I, P, S>(
    image: &I,
    left: u32,
    right: u32,
    bottom: u32,
    top: u32,
) -> (S, S, S, S)
where
    I: GenericImageView<Pixel = P>,
    P: Pixel<Subpixel = S>,
    S: Primitive + Enlargeable,
Expand description

Get a pixel for a thumbnail where the input window encloses at least a full pixel.