Create empty image with the image crate of Rust

In this example we create an empty image using the image crate of Rust.

This is the result:

Yes, this is just a black square.

cargo new create-empty-image
cd create-empty-image
cargo add image

Results in the following file:

examples/create-empty-image/Cargo.toml

[package]
name = "create-empty-image"
version = "0.1.0"
edition = "2021"

# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

[dependencies]
image = "0.24"

Then we add the code:

examples/create-empty-image/src/main.rs

use image::{RgbImage, ImageBuffer};

fn main() {
    empty();
}

fn empty() {
    let width = 200;
    let height = 200;

    let img: RgbImage = ImageBuffer::new(width, height);
    img.save("empty.png").unwrap();
}

and run

cargo run