Patent ID: 6900841

Claim:
An image processing apparatus comprising: an image input unit for capturing image information including distance information to each portion of an object to be photographed; a parameter input unit for inputting a parameter from which an effective aperture and focal length of the an assumed image sensing optical system can be derived; an in-focal point position designation unit for designating an in-focal point position of the assumed image sensing optical system; a blur state calculation unit for calculating a blur state from the distance information input by said image input unit, the in-focal point position designated by said in-focal point position designation unit, and the parameter input by said parameter input unit; and an image processing unit for applying a blur effect to the image input by said image input unit in correspondence with the blur state calculated by said blur state calculation unit; wherein the in-focal Point position designated by said in-focal point position designation unit is determined using the distance information included in the image information, based on a position which is designated by a user in an image corresponding to the image information.