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A dewarping algorithm to compensate volume binding distortion in scanned documents

This paper presents a new algorithm for dewarping the volume binding distortion often found whenever one scans a book. The existing algorithms in the literature need scanner parameters, seldom known by the end user. The algorithm proposed here only needs the user to print a calibration grid and to scan it in the central page of a volume. The algorithm collects all the data needed to dewarp all pages in the volume.