A computer readable storage medium for storing an image display program
giving rise to a soft focus effect to a specific portion of a game screen
is provided. The program maker a computer generate dummy image data
comprising only image portions of at least a predetermined lightness based
on original image data comprising a display image; combine the original
image data and the dummy image data by a positional relationship where an
image common to the original image data and the dummy image data is
shifted in position; and display an image based on the combined image
data.
