The present invention relates to a method for an automatic alignment of digital image layers, implemented in specific software on a computing device (e.g. a personal computer (1)) which drives an image scanner (3) and aligns the multiple scanned image layers (25) in such a way, that of these layers (25) one resulting image (10) will be created, which has—by a statistical calculus based on multiple sampling and averaging of these multiple scanned image layers (25)—a decreased random distributed noise spectrum compared to single scanned images (25) and by the automatic alignment avoids a decrease in sharpness using statistical comparison of the multiple layers (25), especially deviation and cost functions, aiming to compensate a misalignment (6), e.g. mechanical mismatches of the scanner's (3) scanning carriage, between multiple scans (25).