Bildverarbeitungsverfahren und Gerät

摘要

It is an object of the invention to correct a tilt of an image inputted in a tilted state for a sentence of an original without intervening the operation of the user. For this purpose, projections of two partial images are obtained at check points which were properly decided in the input image information. A tilt angle of an original is obtained from a correlation position of the projections of each partial area. By dividing the image into belt-shaped small areas and shifting in accordance with the tilt angle obtained, an image in which the tilt of the input tilted image was corrected is formed.