use ndarray::s;
use ndarray_image::{open_image, save_image, Colors};
use std::path::PathBuf;
use structopt::StructOpt;
#[derive(Debug, StructOpt)]
#[structopt(name = "image", about = "Loads image and puts red dots on it")]
struct Opt {
#[structopt(parse(from_os_str))]
file: PathBuf,
#[structopt(parse(from_os_str))]
output: PathBuf,
}
fn main() {
let opt = Opt::from_args();
let mut image = open_image(opt.file, Colors::Rgb).expect("unable to open input image");
for n in image.slice_mut(s![..;10, ..;2, 0]) {
*n = 255;
}
save_image(opt.output, image.view(), Colors::Rgb).expect("failed to write output");
}