If you need to convert a Bitmap to an Byte array, here is how you do it.
Public Shared Function ConvertToByteArray(ByVal value As Bitmap) As Byte()
Dim bitmapBytes As Byte()
Using stream As New System.IO.MemoryStream
value.Save(stream, value.RawFormat)
bitmapBytes = stream.ToArray
End Using
Return bitmapBytes
End Function
Tip By: David McCarter
This code and more like it can be found in the dotNetTips.Utility assembly on the CodePlex site: http://www.codeplex.com/dotNetTipsUtility