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- W2004994467 abstract "Document image processing has become an increasingly important technology in the automation of office documentation tasks. Automatic document scanners such as text readers and OCR (optical character recognition) systems are an essential component of systems capable of those tasks. One of the problems in this field is that the document to be read is not always placed correctly on a flat-bed scanner. This means that the document may be skewed on the scanner bed, resulting in a skewed image. This skew has a detrimental effect on document analysis, document understanding, and character segmentation and recognition. Consequently, detecting the skew of a document image and correcting it are important issues in realizing a practical document reader. In this paper we describe new algorithms for skew detection and skew correction. We then compare the performance and results of this skew detection algorithm to other published methods from O'Gorman, Hinds, Le, Baird, and Postl. Finally, we discuss the theory of skew detection and the different approaches taken to solve the problem of skew in documents. The skew correction algorithm we propose has been shown to be extremely fast, with run times averaging under 0.25 CPU seconds to calculate the angle on a DEC 5000/20 workstation." @default.
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- W2004994467 date "1996-03-05" @default.
- W2004994467 modified "2023-09-23" @default.
- W2004994467 title "<title>Fast algorithm for skew detection</title>" @default.
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- W2004994467 doi "https://doi.org/10.1117/12.234639" @default.
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