Imaging apparatus capable of automatic photography, image playback apparatus which plays back automatically photographed image, image playback method, and imaging method

According to an embodiment, image playback apparatus includes: an image acquisition device configured to acquire, in association with a plurality of sensing functions capable of being activated or inactivated, photography image information automatically photographed under a predetermined photography condition, based on a sensing result of the activated sensing function, the image acquisition device being configured to acquire the photography image information together with trigger information indicative of the photography condition or the sensing function used under the photography condition; and a display device configured to display an image.