1. An image processing apparatus for processing a first dynamic image and a second dynamic image, each of the first dynamic image and the second dynamic image including a plurality of frames, the image processing apparatus comprising: circuitry configured to transform each frame of the first dynamic image to create a first transformed dynamic image, the transforming based on a first transformation information that represents a relative positional relationship between each frame of the first dynamic image; transform each frame of the second dynamic image to create a second transformed dynamic image, the transforming based on a relative relationship information and a second transformation information, the relative relationship information representing a relative positional relationship between at least one frame including the first dynamic image and at least one frame including the second dynamic image, and the second transformation information representing a relative positional relationship between each frame of the second dynamic image; and synthesize the first transformed dynamic image and the second transformed dynamic image to create a synthesized dynamic image by aligning, for each frame of the first transformed dynamic image and the second transformed dynamic image, a position in the first transformed dynamic image with a position in the second transformed dynamic image.