Abstract.
The proliferation of inexpensive sheet-feed scanners, particularly in fax machines, has led to a need to correct for the uneven paper feed rates during digitization if the images produced by these scanners are to be further analyzed. We develop a technique for detecting and compensating for this type of image distortion. This technique relies on the detection of multiple prominent skew angles in the document image along with their vertical position on the page, rotating the image by each of those angles and sampling the rotated images to allow reconstruction of the entire page image.
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Antonacopoulos A (1997) Local skew angle estimation from background space in text regions. Proceedings of the international conference on document analysis and recognition, Ulm, Germany, 18-20 Aug 1997, pp 684-688
Bagdanov AD, Kanai J (1996) Evaluation of document image skew estimation techniques. SPIE, San Jose, 29-30 January 1996, pp 343-353
Baird HS (1987) The skew angle of printed documents. Proceedings of the SPSE symposium on hybrid imaging systems, Rochester, NY, pp 21-24
Baird HS (1992) Document image defect models. In: Baird HS, Bunke H, Yamamoto K (eds) Structured document image analysis. Springer, Berlin Heidelberg New York, pp 546-556
Hunter R, Robinson AH (1980) International digital facsimile coding standards. Proc IEEE 68(7):854-867
Kanungo T, Haralick R, Phillips I (1993) Global and local document degradation models. Proceedings of the international conference on document analysis and recognition, Tsukuba Science City, Japan, 20-22 October 1993, pp 730-734
Paeth AW (1986) A fast algorithm for general raster rotation. Graphics Interface ‘86, May 1986, pp 77-81
Spitz AL (1998) Analysis of compressed document images for dominant skew, multiple skew and logotype detection. Comput Vis Image Understand 70(3):321-334
Spitz AL (1992) Skew determination in CCITT Group 4 compressed images. Proceedings of the symposium on document analysis and information retrieval, Las Vegas, 16-18 March 1992, pp 11-25
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Received: 28 November 2002, Accepted: 16 April 2003, Published online: 12 September 2003
Correspondence to: A. Lawrence Spitz
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Spitz, A.L. Correcting for variable skew in document images. IJDAR 6, 192–200 (2003). https://doi.org/10.1007/s10032-003-0109-9
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DOI: https://doi.org/10.1007/s10032-003-0109-9