Abstract: A method for post-processing radiographs from radiographic data including spectral recordings of a region of interest of an object, the method comprising: creating, from the radiographs, a first image in which a first material of the object is highlighted and a second material of the object is suppressed; creating, from the radiographs, a second image in which the second material is highlighted and the first material is suppressed; post-processing the images, wherein the first image is post-processed by a first filter module and the second image is post-processed by a second filter module; combining the post-processed images to form a single image depicting the first material and the second material; and outputting the single image.