IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD, AND IMAGE PROCESSING PROGRAM

摘要

An image processing apparatus includes: a first image acquisition section 101 that acquires a first image obtained by taking an image of an object to be imaged at illumination-off time at which the object to be imaged is not illuminated; a second image acquisition section 102 that acquires a second image obtained by taking an image of an object to be imaged at illumination-on time at which the object to be imaged is illuminated; a difference image generation section 103 that generates a difference image based on a difference between the luminance of each of pixels constituting the first image acquired by the first image acquisition section 101 and luminance of each of pixels constituting the second image acquired by the second image acquisition section 102; a high-luminance area extraction section 105 that extracts an image area constituted by pixels having a luminance value not less than a predetermined luminance value from the difference image generated by the difference image generation section 103; and a movement determination section 106 that determines, based on the image area extracted by the high-luminance area extraction section 105, the movement amount of the object to be imaged between the image take timing of the first image and image take timing of the second image.