diff --git a/AR-2b/Assets/contour_fuckery.unity b/AR-2b/Assets/contour_fuckery.unity
new file mode 100644
index 0000000..d3b6a41
--- /dev/null
+++ b/AR-2b/Assets/contour_fuckery.unity
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diff --git a/AR-2b/Assets/detection_script.cs b/AR-2b/Assets/detection_script.cs
new file mode 100644
index 0000000..6aa496d
--- /dev/null
+++ b/AR-2b/Assets/detection_script.cs
@@ -0,0 +1,125 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using OpenCVForUnity.CoreModule;
+using OpenCVForUnity.ImgprocModule;
+using System.Linq;
+using Vuforia;
+
+public class detection_script : MonoBehaviour
+{
+    Mat cameraImageMat;
+    Mat stylizedMat = new Mat();
+    Mat greyMat = new Mat();
+
+
+    int width = 400;
+    int height = 400;
+
+    Texture2D outputTexture;
+    MatOfPoint2f dstPoints;
+
+    // Start is called before the first frame update
+    void Start()
+    {
+        dstPoints = new MatOfPoint2f();
+        dstPoints.alloc(4);
+        dstPoints.put(3, 0, width, height);
+        dstPoints.put(2, 0, 0, height);
+        dstPoints.put(1, 0, width, 0);
+        dstPoints.put(0, 0, 0, 0);
+        outputTexture = new Texture2D(width, height, TextureFormat.RGBA32, false);
+    }
+
+    // Update is called once per frame
+    void Update()
+    {
+        MatDisplay.SetCameraFoV(41.5f);
+
+        Image cameraImage = CameraDevice.Instance.GetCameraImage(Image.PIXEL_FORMAT.RGBA8888);
+
+        if (cameraImage != null)
+        {
+            if (cameraImageMat == null)
+            {
+                cameraImageMat = new Mat(cameraImage.Height, cameraImage.Width, CvType.CV_8UC4);
+            }
+            cameraImageMat.put(0, 0, cameraImage.Pixels);
+
+            Imgproc.cvtColor(cameraImageMat, greyMat, Imgproc.COLOR_RGB2GRAY);
+
+
+            Imgproc.threshold(greyMat, stylizedMat, 69, 255, Imgproc.THRESH_BINARY);
+
+
+            List<MatOfPoint> contourList = new List<MatOfPoint>();
+            Mat hierarchy = new Mat();
+            Imgproc.findContours(stylizedMat, contourList, hierarchy, Imgproc.RETR_LIST, Imgproc.CHAIN_APPROX_SIMPLE);
+
+            //Imgproc.drawContours(cameraImageMat, contourList, -1, new Scalar(255,0,0), 2);
+
+            List<MatOfPoint> squareContours = new List<MatOfPoint>();
+            foreach (var contour in contourList)
+            {
+                MatOfPoint2f contour2f = new MatOfPoint2f();
+                contour.convertTo(contour2f, CvType.CV_32FC2);
+
+                double epsilon = 0.01f * Imgproc.arcLength(contour2f, true);
+                MatOfPoint2f approx = new MatOfPoint2f();
+                Imgproc.approxPolyDP(contour2f, approx, epsilon, true);
+
+                if (approx.toList().Count == 4)
+                {
+                    Imgproc.drawContours(cameraImageMat, new List<MatOfPoint> { contour }, -1, new Scalar(255,0,0), 2);
+                    squareContours.Add(contour);
+                }
+            }
+
+
+            MatOfPoint square = findSquare(squareContours);
+            if (square == null)
+            {
+                MatDisplay.DisplayMat(cameraImageMat, MatDisplaySettings.FULL_BACKGROUND);
+                // TODO: Maybe display cam first
+                return;
+            }
+
+            Imgproc.drawContours(cameraImageMat, new List<MatOfPoint> { square }, -1, new Scalar(0, 255, 0), 2);
+
+
+
+            MatDisplay.DisplayMat(cameraImageMat, MatDisplaySettings.FULL_BACKGROUND);
+            
+        }
+    }
+
+    MatOfPoint findSquare (List<MatOfPoint> squareContours)
+    {
+        foreach (var outer_square in squareContours)
+        {
+            var outer_maxX = outer_square.toList().Max(point => point.x);
+            var outer_maxY = outer_square.toList().Max(point => point.y);
+
+            var outer_minX = outer_square.toList().Min(point => point.x);
+            var outer_minY = outer_square.toList().Min(point => point.y);
+
+            foreach (var inner_square in squareContours)
+            {
+                var inner_maxX = inner_square.toList().Max(point => point.x);
+                var inner_maxY = inner_square.toList().Max(point => point.y);
+
+                var inner_minX = inner_square.toList().Min(point => point.x);
+                var inner_minY = inner_square.toList().Min(point => point.y);
+
+                if (outer_minX < inner_minX &&
+                    outer_minY < inner_minY &&
+                    outer_maxX > inner_maxX &&
+                    outer_maxY > inner_maxY)
+                {
+                    return outer_square;
+                }
+            }
+        }
+        return null;
+    }
+}
diff --git a/AR-2b/Assets/inverse_homo_skull.unity b/AR-2b/Assets/inverse_homo_skull.unity
index d3b6a41..866e696 100644
--- a/AR-2b/Assets/inverse_homo_skull.unity
+++ b/AR-2b/Assets/inverse_homo_skull.unity
@@ -501,7 +501,7 @@ GameObject:
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