Abstract: An image processing apparatus includes a unit (input unit) configured to acquire image data and depth information corresponding to the image data, a unit (layer division image generation unit) configured to generate layer division image data based on the depth information by dividing the image data into a plurality of layers depending on a subject distance, and a unit (output unit) configured to output the layer division image data. The layer division image data includes image data of a first layer including image data corresponding to a subject at a subject distance less than a first distance, and image data of a second layer including image data corresponding to a subject at a subject distance larger than or equal to the first distance. The first distance changes based on the depth information.