Abstract
A novel image interpolation method is proposed by combining the error-amended sharp edges scheme with the contourlet transformation. The proposed method incorporates the error-amended part into the bilinear interpolation algorithm. Directions of the interpolation points are determined by the Sobel operator, then we get a preliminary zoomed image. A new interpolated image is obtained when the low-frequency components of the preliminary zoomed image are replaced by the enhanced amplitude of the original image. Finally the high-resolution image is achieved by the inverse contourlet transform of the new interpolated image. The experimental results indicate that, compared with traditional image zooming methods, the proposed method can get clearer and sharper edges, especially for the original images having more details.
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© 2011 Springer-Verlag Berlin Heidelberg
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Cai, N., Zhang, H., Zhang, N., Li, F. (2011). Contourlet-Based Error-Amended Sharp Edge Scheme for Image Zooming. In: Deng, H., Miao, D., Lei, J., Wang, F.L. (eds) Artificial Intelligence and Computational Intelligence. AICI 2011. Lecture Notes in Computer Science(), vol 7003. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-23887-1_53
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DOI: https://doi.org/10.1007/978-3-642-23887-1_53
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-23886-4
Online ISBN: 978-3-642-23887-1
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