In Selenium c#, how to bypass image validation if the picture is not accessible (404 image not found)?

Question

I have image validation code that checks whether or not a picture is empty. We don't have images in many places in my project.

So I'd want to ignore any images that produce a 404 response code and only look at images that return a 200 acceptable response code.

In this case, I'd want some support or assistance.

Code:

    **return GetImage(src).IsEmpty();**

   public static Bitmap GetImage(string url)
    {
        byte[] imageData = HttpHelper.downloadData(Randomize(url)); //DownloadData function from here
        if (imageData != null)
        {
            var stream = new MemoryStream(imageData);
            var img2 = new Bitmap(System.Drawing.Image.FromStream(stream));
            stream.Close();
            return img2;
        }
        else
            return null;
    }

                public static byte[] downloadData(string url)
    {
        downloadedData = new byte[0];
        try
        {
            ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3 | SecurityProtocolType.Tls12 | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls;
            System.Net.ServicePointManager.ServerCertificateValidationCallback = delegate { return true; };
            //HttpRequestCachePolicy noCachePolicy = new HttpRequestCachePolicy(HttpRequestCacheLevel.NoCacheNoStore);
            HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
            req.UserAgent = "Test";
            //req.CachePolicy = noCachePolicy;
            WebResponse response = req.GetResponse();
            Stream stream = response.GetResponseStream();

            byte[] buffer = new byte[1024];
            int dataLength = (int)response.ContentLength;
            MemoryStream memStream = new MemoryStream();
            while (true)
            {
                int bytesRead = stream.Read(buffer, 0, buffer.Length);

                if (bytesRead == 0)
                {
                    Application.DoEvents();
                    break;
                }
                else
                {
                    memStream.Write(buffer, 0, bytesRead);
                }
            }
            downloadedData = memStream.ToArray();
            stream.Close();
            memStream.Close();
        }
        catch (Exception ex)
        {
            return null;
        }
        return downloadedData;
    }

    public static bool IsEmpty(this Bitmap image)
    {
        if (image == null)
            return true;

        var data = image.LockBits(new Rectangle(0, 0, image.Width, image.Height),
        ImageLockMode.ReadOnly, image.PixelFormat);
        var bytes = new byte[data.Height * data.Stride];
        Marshal.Copy(data.Scan0, bytes, 0, bytes.Length);
        image.UnlockBits(data);
        return bytes.All(x => x == 0);
    }