usls/examples/ultralytics-rtdetr/main.rs

use anyhow::Result;
use usls::{models::YOLO, Annotator, DataLoader, ModelConfig};

#[derive(argh::FromArgs)]
/// Example
struct Args {
    /// dtype
    #[argh(option, default = "String::from(\"auto\")")]
    dtype: String,

    /// device
    #[argh(option, default = "String::from(\"cpu:0\")")]
    device: String,
}

fn main() -> Result<()> {
    tracing_subscriber::fmt()
        .with_env_filter(tracing_subscriber::EnvFilter::from_default_env())
        .with_timer(tracing_subscriber::fmt::time::ChronoLocal::rfc_3339())
        .init();

    let args: Args = argh::from_env();

    // build model
    let config = ModelConfig::ultralytics_rtdetr_l()
        .with_model_dtype(args.dtype.as_str().try_into()?)
        .with_model_device(args.device.as_str().try_into()?)
        .commit()?;
    let mut model = YOLO::new(config)?;

    // load images
    let xs = DataLoader::try_read_n(&["./assets/bus.jpg"])?;

    // run
    let ys = model.forward(&xs)?;
    println!("{:?}", ys);

    // annotate
    let annotator = Annotator::default();
    for (x, y) in xs.iter().zip(ys.iter()) {
        annotator.annotate(x, y)?.save(format!(
            "{}.jpg",
            usls::Dir::Current
                .base_dir_with_subs(&["runs", "ultralytics-RTDETR"])?
                .join(usls::timestamp(None))
                .display(),
        ))?;
    }

    Ok(())
}