1. A method for combining a first image and a second image of an examination object, the first and second images including an overlap region, the method comprising: determining a superposed image as a weighted superposition of the first image and the second image in the overlap region, with a weighting function which represents a weight of at least one of the first image and the second image at positions in the superposed image being spatially variable in the overlap region; transforming the first image and the second image on the basis of a comparison of at least one of the first image and the second image with the determined superposed image; determining a further superposed image from the transformed first image and the transformed second image; and generating an overall image from the further superposed image when at least one convergence criterion is satisfied, wherein the superposed image of the first and the second image is used as a reference image for the transformation of the first and the second image.