CODE
private BitmapImage ReturnBitmap(string destFile)
{
// Read byte[] from png file
BinaryReader binReader = new BinaryReader(File.Open(destFile, FileMode.Open));
FileInfo fileInfo = new FileInfo(destFile);
byte[] bytes = binReader.ReadBytes((int)fileInfo.Length);
binReader.Close(); // Init bitmap
BitmapImage bitmap = new BitmapImage();
bitmap.BeginInit();
bitmap.StreamSource = new MemoryStream(bytes);
bitmap.EndInit();
return bitmap;
}