Function threshold

pub fn threshold(image: &GrayImage, thresh: u8) -> GrayImage

Returns a binarized image from an input 8bpp grayscale image obtained by applying the given threshold. Pixels with intensity equal to the threshold are assigned to the background.

Examples

use imageproc::contrast::threshold;

let image = gray_image!(
    10, 80, 20;
    50, 90, 70);

let thresholded = gray_image!(
    0, 255,   0;
    0, 255, 255);

assert_pixels_eq!(threshold(&image, 50), thresholded);