1. An image processing apparatus comprising: one or more processors; and a memory having stored thereon instructions, which, when executed by the one or more processors, cause the image processing apparatus to: determine an atmospheric light component from a captured image including an influence of fine particles in an atmosphere; and generate an image from the captured image, in which the influence of fine particles has been reduced, based on the determined atmospheric light component, wherein the image is generated based on data of the captured image and data of an exposure value at the time of photographing the captured image.