Abstract: A digital image processing apparatus including an infrared (IR) cut filter and a visible light cut filter that are arranged on an optical axis between a lens unit and an image sensor, and that are selectively retractable from the optical axis, a filter driver that drives the IR cut filter and the visible light cut filter, a first image information acquiring unit that acquires first image information transmitted through the IR cut filter, a second image information acquiring unit that acquires second image information transmitted through the visible light cut filter, and an image synthesizing unit that extracts a synthesized image from the first image information and the second image information, in a low-illumination mode.