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Published in:
2017 | OriginalPaper | Chapter
Skew Detection and Correction of Devanagari Script Using Interval Halving Method
Authors : Trupti A. Jundale, Ravindra S. Hegadi
Published in: Recent Trends in Image Processing and Pattern Recognition
Publisher: Springer Singapore
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Abstract
We proposed a method for skew detection and correction of handwritten and printed Devanagari script which is based on pixels of axes parallel rectangle and interval halving also called bisection method. The proposed approach works for skewed word, uniform skewed angle of line and paragraph. The method uses tangential pixels of axes parallel rectangle. By finding these pixels, area of a rectangle which is axes parallel is calculated. Then using numerical bisection method, pixels of this rectangle box are rotated and again area of the rectangle using new rotated pixels is calculated and the calculated area is compared with the previously calculated area. This process continues till we cant get the least area of axes parallel rectangle. The angle with the least area of a rectangle is the skew angle. This technique achieves a good result as compared with other techniques in the literature with the accuracy rate of 95%. The manual trained dataset is used for testing purpose to calculate the accuracy.