IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD

An image processing apparatus (10) includes: an imaging unit (11) which captures an image; a focal range control unit (12) which extends a focal position and a depth of field of a captured image by controlling an imaging device or a focus lens in the imaging unit (11); and a distance measurement unit (14) which measures a distance to a subject, from a degree of blur in each of n images (where n ¥ 2) captured by the imaging unit (11) controlled by the focal range control unit (12) and having focal ranges different from each other.