method for compensating for image faults in a digital image recording which has been created by an x - ray system consisting of a radiographic source , an anti - scatter grid and a digital x - ray detector such as an image amplifier or a solid - state image detector , said image faults resulting from decentering , defocusing or defects in the anti - scatter grid or by the heel effect and causing an intensity reduction of the primary radiation falling on the x - ray detector , characterized in that the actual reduction in intensity is measured through the anti - scatter grid and correction parameters are determined based on the measured values recorded which are then used to correct the x - ray image recording .