rajeshpachaikani/main.rs

## main.rs
use opencv::{
    Result,
    prelude::*,
    objdetect,
    highgui,
    imgproc,
    core,
    types,
    videoio,
};
fn main()->Result<()>{
    let mut camera = videoio::VideoCapture::new(0, videoio::CAP_ANY)?;
    // Use the following command to find the actual location of your xml files
    //sudo find / -name haarcascade_frontalface_default.xml
    //Haarcascade for eye detection
    //let xml = "/usr/local/share/opencv4/haarcascades/haarcascade_eye.xml";
    //Haarcascade for face detection
    let xml = "/usr/local/share/opencv4/haarcascades/haarcascade_frontalface_default.xml";
    let mut face_detector = objdetect::CascadeClassifier::new(xml)?;
    let mut img = Mat::default();
    loop{
        camera.read(&mut img)?;
        let mut gray = Mat::default();
        imgproc::cvt_color(&img, &mut gray, imgproc::COLOR_BGR2GRAY, 0)?;
        let mut faces = types::VectorOfRect::new();
        face_detector.detect_multi_scale(
            &gray,
            &mut faces,
            1.1,
            10,
            objdetect::CASCADE_SCALE_IMAGE,
            core::Size::new(10, 10),
            core::Size::new(0, 0)
        )?;
        println!("{:?}", faces);
        if faces.len() > 0{
            for face in faces.iter(){
                imgproc::rectangle(
                    &mut img,
                    face,
                    core::Scalar::new(0f64, 255f64, 0f64, 0f64),
                    2,
                    imgproc::LINE_8,
                    0
                )?;
            }
        }
        highgui::imshow("gray", &img)?;
        highgui::wait_key(1)?;
    }
    Ok(())
}
	use opencv::{
	Result,
	prelude::*,
	objdetect,
	highgui,
	imgproc,
	core,
	types,
	videoio,
	};
	fn main()->Result<()>{
	let mut camera = videoio::VideoCapture::new(0, videoio::CAP_ANY)?;
	// Use the following command to find the actual location of your xml files
	//sudo find / -name haarcascade_frontalface_default.xml
	//Haarcascade for eye detection
	//let xml = "/usr/local/share/opencv4/haarcascades/haarcascade_eye.xml";
	//Haarcascade for face detection
	let xml = "/usr/local/share/opencv4/haarcascades/haarcascade_frontalface_default.xml";
	let mut face_detector = objdetect::CascadeClassifier::new(xml)?;
	let mut img = Mat::default();
	loop{
	camera.read(&mut img)?;
	let mut gray = Mat::default();
	imgproc::cvt_color(&img, &mut gray, imgproc::COLOR_BGR2GRAY, 0)?;
	let mut faces = types::VectorOfRect::new();
	face_detector.detect_multi_scale(
	&gray,
	&mut faces,
	1.1,
	10,
	objdetect::CASCADE_SCALE_IMAGE,
	core::Size::new(10, 10),
	core::Size::new(0, 0)
	)?;
	println!("{:?}", faces);
	if faces.len() > 0{
	for face in faces.iter(){
	imgproc::rectangle(
	&mut img,
	face,
	core::Scalar::new(0f64, 255f64, 0f64, 0f64),
	2,
	imgproc::LINE_8,
	0
	)?;
	}
	}
	highgui::imshow("gray", &img)?;
	highgui::wait_key(1)?;
	}
	Ok(())
	}