1. An imaging device that captures a subject, generates image data of the subject, captures a moving image, and captures a still image during moving image capturing including directly after moving image capturing end, the device comprising: a moving image special effect image processing unit that performs image processing of applying a first special effect causing a visual effect over a plurality of frames corresponding to image data of a moving image, and image processing of applying a second special effect corresponding to the first special effect to a still image captured during moving image capturing using image data of a moving image captured before the still image; and a control unit that controls an application form of the first and second special effects in the moving image special effect image processing unit.