HELP | How to use imgproc::match_template

[Aryxst]

After I get the result Mat how do i determine if the template has matched with a threshold? I get an immense Vector of floats, how do I use it?
I took a look at issues #131 and #168 but I couldn't determine how after they got the Mat they processed it.

MY REPO

  use opencv::{
      core::{ToInputArray, CV_32FC1},
      imgcodecs::{imread, IMREAD_GRAYSCALE},
      imgproc::{self, TM_CCORR_NORMED},
      prelude::*,
  };
  
fn detect_image(haystack: &Mat) -> Mat {
        let needle = imread("./src/needle_spawn_sign.png", IMREAD_GRAYSCALE)
            .expect("Failed to read needle image");

        let zero = Mat::zeros(
            haystack.rows() - needle.rows() + 1,
            haystack.cols() - needle.cols() + 1,
            CV_32FC1,
        )
        .unwrap();

        let mut result = zero.to_mat().unwrap();

        imgproc::match_template(
            &haystack.input_array().unwrap(),
            &needle.input_array().unwrap(),
            &mut result,
            TM_CCORR_NORMED,
            &Mat::default(),
        )
        .expect("Failed to match template");

        result
    }

     // ...
      let result = detect_image(&img);
      println!("{:?}", &result.data_typed::<f32>().unwrap());
     // ...

Results in(#131):