Abstract
Addressing the issue of feature/detail preserving color image smoothing, we propose a novel unified approach based on a quaternion framework. The main idea is to holistically extract the local orientation information at each lattice point, and then to incorporate it into the smoothing process. We introduce a new Quaternion Gabor Filter to derive the local orientation information in color images. This derived orientation information is modeled using a continuous mixture of appropriate exponential basis functions. We solve the continuous mixture integral in analytic form, and develop a spatially varying kernel which respects to the local geometry at each lattice point in a color image. Superior performance of our smoothing framework is demonstrated via comparison to competing state-of-the-art algorithms in literature.
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Subakan, Ö.N., Vemuri, B.C. (2009). Quaternion-Based Color Image Smoothing Using a Spatially Varying Kernel. In: Cremers, D., Boykov, Y., Blake, A., Schmidt, F.R. (eds) Energy Minimization Methods in Computer Vision and Pattern Recognition. EMMCVPR 2009. Lecture Notes in Computer Science, vol 5681. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-03641-5_31
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DOI: https://doi.org/10.1007/978-3-642-03641-5_31
Publisher Name: Springer, Berlin, Heidelberg
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