Function image_toolbox::transform_from_histogram

pub fn transform_from_histogram(
    img: &DynamicImage, 
    hist: &Histogram
) -> DynamicImage

turn a very bright image into a normal looking one by using histogram equalization.

use image_toolbox::{transform_from_histogram,Histogram};
use image::{DynamicImage};
 
// make a new 500X500 image 
let img = DynamicImage::new_rgba8(500,500); 
let histogram = Histogram::new(&img);
let new_image = transform_from_histogram(&img, &histogram);