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Two-Dimensional Image Rotation

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Mathematical Visualization
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Abstract

We study the problem of approximating a rotation of the plane, α : R 2R 2 α(x,y) = (x cos θ + y sin θ, y cos θx sin θ), by a bijection β: Z 2Z 2. We show by an explicit construction that one may choose β so that \( sup_{z \in Z^2 } \left| {\alpha \left( z \right) - \beta \left( z \right)} \right| \leqslant \frac{1} {{\sqrt 2 }}\frac{{1 + r}} {{\sqrt {1 + r^2 } }}, \). Where r = tan(θ/2). The scheme is based on those invented and patented by the second author in 1994.

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References

  1. Kang ET. AL. U.S. Pat. No. 4,829,452, issued May 9, 1989.

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  2. A. Paeth A fast algorithm for general raster rotation,Proceedings, Graphics Interface ‘86, Canadian Information Processing Society, Vancouver, pp. 77–81.

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  3. I. Sterling, and T. Sterling Approximating Planer Rotation,to appear in the Journal of Discrete and Computational Geometry.

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  4. T. Sterling Image Rotation Using Block Transfers, U.S. Pat. No. 5,359,706, Oct. 25, 1994.

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© 1998 Springer-Verlag Berlin Heidelberg

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Sterling, I., Sterling, T. (1998). Two-Dimensional Image Rotation. In: Hege, HC., Polthier, K. (eds) Mathematical Visualization. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-03567-2_15

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  • DOI: https://doi.org/10.1007/978-3-662-03567-2_15

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-08373-0

  • Online ISBN: 978-3-662-03567-2

  • eBook Packages: Springer Book Archive

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