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3. Kapoor, R., Bagai, D., Kamal, T.S.: Skew angle detection of a cursive handwritten devanagari script character image. Journal of Indian Institute of Science 82, 161–175 (2002)
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5. Lu, Y., Tan, C.L.: A nearest neighbor chain based approach to skew estimation in document images. Pattern Recognition Letters 24, 2315–2323 (2003)