How to capture the gray scale photo

Question

Hi. I followed this (
https://msdn.microsoft.com/en-us/library/windows/apps/hh202982(v=vs.105).aspx ) example to capture photos and also in gray scale but the sample doesn't capture the gray image, it only pumps the gray pixels to the Image control. How can I freeze these
pixels in the Image control or capture it as a jpg? Thank you in advance. 

Answer 1

I should have been more clear. Forgive me.  I followed that example and added all the functionality as in the example like the focus(auto and tap), the flash light ect and it works but when it comes to the grayscale: the example only streams the converted
pixels to the image control. It does not "capture" the image. Somehow I have to stop pumping the grayscaled pixels to the Image control and then I want to save-send the "gray" image. What's the easiest way to do that? This is what I have
so far:
MyClient.DownloadStringAsync(new Uri("http://www.iclips.co.za/sign_in.php?username=Clint William Theron&password=k"));
However, the username and password is empty on the server side. How do I add paramters and download the server's response? Thanks in advance
I basically want to turn this:
var values = new List<KeyValuePair<string, string>>
new KeyValuePair<string, string>("username", un),
new KeyValuePair<string, string>("password", pw),
new KeyValuePair<string, string>("friends", friends),
new KeyValuePair<string, string>("density", "high"),
new KeyValuePair<string, string>("platform", "Windows Phone"),
var task = DoPost_Sign_In_To_Server("http://www.iclips.co.za/sign_in.php", values);
async Task DoPost_Sign_In_To_Server(string url, IEnumerable<KeyValuePair<string, string>> values)
try
var httpClient = new HttpClient(new HttpClientHandler());
HttpResponseMessage response = await httpClient.PostAsync(url, new FormUrlEncodedContent(values));
response.EnsureSuccessStatusCode();
var responseString = await response.Content.ReadAsStringAsync();
this.Dispatcher.BeginInvoke(delegate()
if (responseString.Trim().StartsWith("Welcome to iClips. You need to delete"))
MessageBox.Show(responseString);
return;
if (responseString.Trim().StartsWith("Welcome to iClips"))
//this means sign up was succesfull
//so now we signed in
txtDebug.Text = "Sign In Successfull :-)";
vibrator.Start(TimeSpan.FromSeconds(1));
else
MessageBox.Show("Network Error: \n" + responseString);
signForm.Visibility = Visibility.Visible;
signForm_Shadow.Visibility = Visibility.Visible;
catch (Exception ex)
MessageBox.Show("Network Error: \n" + ex.Message.ToString());
signForm.Visibility = Visibility.Visible;
signForm_Shadow.Visibility = Visibility.Visible;
txtDebug.Text = "Try to Sign In >> again.";
in to WebClient, because of the progress bar that can be bind to WebClient.