Patent ID: 8639001

Claim:
An image processing apparatus comprising: a first identifying unit configured to identify the position of at least a part of a layer boundary based on a tomography image of a target eye to be captured; a setting unit configured to set a search range for a portion whose position has not been identified by the first identifying unit based on a depth directional position of the layer boundary whose position has been identified by the first identifying unit; and a second identifying unit configured to identify the position of a layer boundary portion whose position has not been identified by the first identifying unit based on a luminance value in a position where the layer boundary identified by the first identifying unit does not exist in the search range having been set, wherein the layer boundary is any one of an interface of an inner limiting membrane, an interface of a nerve fiber layer, an interface of an inner plexiform layer, an interface of an outer plexiform layer, an interface between inner and outer segments of the photoreceptors, or an interface of a retinal pigment epithelium.