Face and Eye detection using Opencv On Rustlang

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(())
}

Thank you so much brother problem is solved

https://docs.rs/opencv/latest/opencv/imgproc/fn.put_text.html
https://docs.rs/opencv/latest/opencv/core/struct.Point_.html#structfield.x

Brother I am trying to use put_text on in my program unable to figure out how to use Point in the put_text function.
here is the snippet of code I am using in my function, it will be kind of you if you help me in this function ?

use opencv::{highgui, prelude::*, imgcodecs, imgproc, Point_  Result};

pub fn image_display_write() -> Result<()> {
    let url = String::from("../image.jpeg") ;
    let mut image_color = imgcodecs::imread(&url, imgcodecs::IMREAD_COLOR)?;
    let mut i = 0 ; 
    loop {
         highgui::imshow("image", &image_color)?;
         let mut key = highgui::wait_key(1)?;
         let font = imgproc::FONT_HERSHEY_SIMPLEX;
         let company:&str="TutorialsPoint";
         imgproc::put_text(&mut image_color, company, (140+i , 250), font, 0.5, [255,255,255], 2, imgproc::LINE_AA , true)?;
         i = i + 1 ; 
         if key == 113{
            break;
        }
    } 
    Ok(())
}

If anyone is facing the same issue but on a windows 10 or 11, follow this solution.