Retrieving values from mvc View to Controller

Question

I have a Captured Photo image that needs to be sent to the Controller for processing. All images below are populated with the same picture, in a test to see what's passed back on form-submit

<img id="facePic" class="main-info-img" src="../../assets/img/scan-face.png">
<img alt="Hidden Image" name="hiddenFace" id="hiddenFace" />
<input type="hidden" alt="Hidden Image" name="hiddenImage" id="hiddenImage" />

Inside the controller, the basic Request.Form text fields' values are available, for instance string frmDept = Request.Form["DepartmentId"]; contains "1"

but NO Request.Form image data is available

string frmVar = Request.Form["facePic"];                 //(empty)
string frmFace = Request.Form["hiddenImage"];            //(empty)  

If there's any other way to get the image data passed, your suggestions would be appreciated.

Amongst others, I have tried to retrieve the image from the Model parameter, but that's not working