1. An image processing device comprising: a subject image designator that designates a main subject in an image; an image processor that subjects an image to an image process that depends on a distance to the main subject, the image process comprises a blurring process that includes a near distance operational mode and a far distance operational mode, wherein, one of the near distance operational mode and the far distance operational mode is selected in accordance with the distance to the main subject, and in the near distance operational mode, blurring intensity is increased in accordance with an increase in distance from the main subject, and in the far distance operational mode, only objects in an area farther than the main subject are subjected to a constant intensity blurring; and a blur setting processor that sets the degree of the blurring performed in the blurring process.