Quick version:
How do I get an image that was generated on the users browser back to the server?
The current plan is this:
If you need to manipulate the image, as long as you can get a byte[] or a Stream of the POSTed file, you can create an image of it, e.g.
MemoryStream mstr = new MemoryStream(myByteArray); Image myImage = Image.FromStream(mstr);