Information storage medium and image control system for multi-touch resistive touch panel display

An image control system controls an image displayed on a display screen of a display section based on a detection value output from a detection section, the detection section outputting the detection value corresponding to a first position when an operation state of a touch operation performed on an operation surface is a first operation state in which a first touch operation is performed at the first position on the operation surface, and outputting the detection value corresponding to a midpoint between the first position and a second position when the operation state is a second operation state in which a second touch operation is performed at the second position on the operation surface in addition to the first touch operation. The image control system includes a correction section that calculates a corrected position when the operation state is the second operation state, one endpoint being indicated by a detected position acquired in the first operation state, a midpoint being indicated by a detected position acquired in the second operation state, and the other endpoint being indicated by the corrected position.