A movement detection circuit analyzes image data from a DSP, and detects an amount of movement of an object relative to a solid-state image sensor. A CPU compares a movement detection value with a threshold value. When the movement detection value is the threshold value or less, a normal light source and a special light source are alternately turned on and off at intervals of charge accumulation time of the solid-state image sensor. Normal light moving images and special light moving images are simultaneously displayed on a screen. When the movement detection value exceeds the threshold value, write of the special light moving images is inhibited. A display control circuit displays on the screen one of the normal light moving images, a special light still image, and tiled windows for simultaneously showing the normal light moving images and special light still image.
