An image processing apparatus comprising: medical image obtaining means for obtaining a medical image of an object in a first shape state； deformation information obtaining means for obtaining deformation information indicating deformation of the object from the first shape state to a second shape state； imaging region setting means for setting an imaging region of the object in the second shape state； deformation image generating means for generating a conversion image by converting the medical image deformed based on the deformation information in accordance with the imaging region； and display image generating means for generating a display image by overlapping the conversion image and the imaging region.
