Document Image skew Detection: Survey and Annotated Bibliography
نویسنده
چکیده
Algorithms that estimate the angle at which a document image is rotated (called a document’s skew) are surveyed. Four broad classes of technique are identified. These include methods that calculate skew from a horizontal projection profile, a distribution of feature locations, a Hough transform, or the distribution of responses from local, directionally sensitive masks. The basic method used by each class of technique is presented and the contributions of individual algorithms within each class are discussed.
منابع مشابه
Fast algorithm for skew detection
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