A image processor of automatic calibrating aberration makes use of radon transforming to pick up four sides profiles of business cards and texts, with profile vertex message, we can calibrate the image aberration and establish internal mathematics module of shot equipment and equation groups of business cards and texts aspect ratio parameter, then solve equation groups to get the rectangle object's aspect ratio and apply it to calibrate images to prevent distortion. At last, the invention can identify the image inversion by words identification for judging if it is necessary to circumvolve the calibrated images to get the perfect calibration results. It is very easy to calibrate images without manual practice , we can utilize the invention in most of the imaging equipments ,such as medical imaging, supervising equipment, mobile, digital camera ,digital vision and so on, no wonder that every user can do the operation very easily.