The Transactions of the Korean Institute of Electrical Engineers (대한전기학회논문지)
- Volume 40 Issue 4
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- Pages.394-401
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- 1991
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- 0254-4172(pISSN)
Space-Variant B-Spline Functions for Image Interpolation
영상보간을 위한 공간변화(Space-Variant) B-Splin 함수
Abstract
B-spline function is generally used for an image interpolation because of its smoothness and continuity, but it accompanies a large amount of blurring effect. In this paper, a space-variant B-spline interpolation function is proposed through deblurring process followed by de-aliasing process. The proposed function has parametric expression and performs smoothing and edge-enhancement adaptively in the interpolation process according to local property of the image. Application of this function to image enlargement, rotation, and curve representation producted good results. Even in the presence of noise, noise smoothing effect as well as edge-enhancement were observed in the image interpolation process.
Keywords