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.
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);