A system displays and filters reports including website visitation data in response to receiving user input. The sender of a text message may limit the downstream distribution of that text message through text message forwarding by associating a forwarding restriction flag with the message. The method further comprises flip chip bonding a second semiconductor chip to a second surface of the first individual PCB if the first semiconductor chip stack structure meets a test standard based on a result of the first test, and dividing the first semiconductor chip stack structure to form a system in package. A density converting means 8 executes density conversion of the intensity image by using the smoothing a histogram of each region.