Image file creation method and image file creation device

Abstract

Provided are an image file creation method and an image file creation device capable of appropriately generating an accessory image as accessory information of a main image. One embodiment of the present invention relates to an image file creation method of creating an image file including a main image and an accessory image as accessory information related to the main image, the image file creation method including: an analysis step of analyzing a subject of the main image or a subject of an image captured earlier in time than capturing of the main image; a decision step of deciding on a factor of an image quality of the accessory image or an angle of view of the accessory image based on an analysis result obtained in the analysis step; and a generation step of generating the accessory image based on the factor or the angle of view decided on in the decision step.

Dependencies are inferred from the claim text.