How do i retrieve and display an Image in a picturebox from SQL Server Database.

I tried using the code below.
I got the error "Cast from type 'Byte() to type 'String' is not valid"

code:

Try
  Connect()
  jesacon.Open()
  jesacmd = New SqlCommand("SELECT PER_SIGN FROM PER_INFO_SIGN WHERE PER_NAME = '" & CheqOwnerComboBox.SelectedItem.ToString & "'", jesacon)

jesadr = jesacmd.ExecuteReader

While jesadr.Read

    DisplaySignPictureBox.Image.FromFile(jesadr(0))

End While

Catch ex As Exception
    MsgBox(ex.Message)
End Try


I just can't understand how to get this work.