Image processing device, method for processing image

摘要

An image processing device includes an obtaining unit configured to obtain a first image and a second image; a determination unit configured to determine a first direction of a certain first reference point of a first region of a user included in the first image and a second direction of a certain second reference point of a second region of the user included in the second image; an extraction unit configured to extract a first feature quantity from the first region and a second feature quantity from the second region; a generation unit configured to generate a third feature quantity from the first feature quantity or a fourth feature quantity from the second feature quantity on the basis of the first direction or the second direction; and an authentication unit configured to authenticate the user on the basis of similarity between the first feature quantity or the third feature quantity.