Is there any way to hide certain elements of UI while taking screenshot

I'm developing an Augmented Reality app. which has feature of taking photo. From one tutorial on youtube I found a way to take photo of everything displayed on screen except UI. But the problem is when I take screenshot all elements hide. This below code is same from Youtuber Edgeras Art.

 using UnityEngine;
 using System.Collections;
 using System.IO;
 
 public class SnapshotShare : MonoBehaviour
 {
     private AndroidUltimatePluginController androidUltimatePluginController;
     Camera mainCamera;
     RenderTexture renderTex;
     Texture2D screenshot;
     Texture2D LoadScreenshot;
     int width = Screen.width;   // for Taking Picture
     int height = Screen.height; // for Taking Picture
     string fileName;
     string screenShotName = "PictureShare.png";
 
     void Start ()
     {
         androidUltimatePluginController = AndroidUltimatePluginController.GetInstance ();
     }
 
     public void Snapshot ()
     {
         StartCoroutine (CaptureScreen ());
     }
     
     public IEnumerator CaptureScreen ()
     {
         yield return null; // Wait till the last possible moment before screen rendering to hide the UI
 
         GameObject.Find ("Canvas").GetComponent<Canvas> ().enabled = false;
         yield return new WaitForEndOfFrame (); // Wait for screen rendering to complete
         if (Screen.orientation == ScreenOrientation.Portrait || Screen.orientation == ScreenOrientation.PortraitUpsideDown) {
             mainCamera = Camera.main.GetComponent<Camera> (); // for Taking Picture
             renderTex = new RenderTexture (width, height, 24);
             mainCamera.targetTexture = renderTex;
             RenderTexture.active = renderTex;
             mainCamera.Render ();
             screenshot = new Texture2D (width, height, TextureFormat.RGB24, false);
             screenshot.ReadPixels (new Rect (0, 0, width, height), 0, 0);
             screenshot.Apply (); //false
             RenderTexture.active = null;
             mainCamera.targetTexture = null;
         }
         if (Screen.orientation == ScreenOrientation.LandscapeLeft || Screen.orientation == ScreenOrientation.LandscapeRight) {
             mainCamera = Camera.main.GetComponent<Camera> (); // for Taking Picture
             renderTex = new RenderTexture (height, width, 24);
             mainCamera.targetTexture = renderTex;
             RenderTexture.active = renderTex;
             mainCamera.Render ();
             screenshot = new Texture2D (height, width, TextureFormat.RGB24, false);
             screenshot.ReadPixels (new Rect (0, 0, height, width), 0, 0);
             screenshot.Apply (); //false
             RenderTexture.active = null;
             mainCamera.targetTexture = null;
         }
         // on Win7 - C:/Users/Username/AppData/LocalLow/CompanyName/GameName
         // on Android - /Data/Data/com.companyname.gamename/Files
         File.WriteAllBytes (Application.persistentDataPath + "/" + screenShotName, screenshot.EncodeToPNG ());  
 
         // on Win7 - it's in project files (Asset folder)
         //File.WriteAllBytes (Application.dataPath + "/" + screenShotName, screenshot.EncodeToPNG ());  
         //File.WriteAllBytes ("picture1.png", screenshot.EncodeToPNG ());
         //File.WriteAllBytes (Application.dataPath + "/../../picture3.png", screenshot.EncodeToPNG ());
         //Application.CaptureScreenshot ("picture2.png");
         GameObject.Find ("Canvas").GetComponent<Canvas> ().enabled = true; // Show UI after we're done
     }
 
     public void ShareImage ()
     {
         string path = Application.persistentDataPath + "/" + screenShotName;
         androidUltimatePluginController.ShareImage ("subject", "subjectContent", path);
     }
 
     /*public void LoadImage ()
     {
         string path = Application.persistentDataPath + "/" + screenShotName;
         byte[] bytes;
         bytes = System.IO.File.ReadAllBytes(path);
         LoadScreenshot = new Texture2D(1,1);
         LoadScreenshot.LoadImage(bytes);
         GameObject.FindGameObjectWithTag ("Picture").GetComponent<Renderer> ().material.mainTexture = screenshot;
     }
 */
     public void close ()
     {
         Application.Quit ();
     }
 }
 

The code works fine but I want the image marked with red color should be shown while buttons with blue lines should be hiddent while taking screenshot. Is it possible? To do so what should I do?

Thanks for help in advance... :)