A camera apparatus (10) includes a degraded region information storage unit (24) that stores degraded region information for each direction in which degraded region data and an imaging direction are associated with each other, a direction recognition unit (30) that recognizes the imaging direction, and an image correction unit (32) that acquires degraded region data which is associated with the imaging direction recognized by the direction recognition unit (30) on the basis of the degraded region information for each direction and performs an image quality improvement process for the image data on the basis of a peculiar degraded region indicated by the degraded region data. The peculiar degraded region is a region related to a degradation element which is caused by at least one of the dome cover or the optical system and is based on at least one of a spatial frequency or signal intensity.