A storage unit stores three-dimensional shape information of a model for an object included in a first image. The information includes three-dimensional coordinates of feature points of the model. A feature point detection unit detects feature points from the first image. A correspondence calculation unit calculates a first motion matrix representing a correspondence relationship between the object and the model from the feature points of the first image and the feature points of the model. A normalized image generation unit generates a normalized image of a second image by corresponding the second image with the information. A synthesized image generation unit corresponds each pixel of the first image with each pixel of the normalized image by using the first motion matrix, and generates a synthesized image by blending a region of the object of the first image with corresponding pixels of the normalized image.