A method for providing a diagnostic image as a combination of two or more images executed, at least in part, on a control logic processor. The method includes obtaining at least first and second image data of a subject and analyzing both the first and second image data to identify at least grid orientation and spacing. Grid suppression is applied to the first and second image data and the grid suppressed first and second image data is pre-processed. The method then combines the grid suppressed first and second image data and decomposes the combined data to obtain one or more diagnostic images for display. The one or more diagnostic images are displayed on a display that is associated with the control logic processor.