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Journal of Electronic Imaging

An edge-restricted spatial interpolation algorithm
Author(s): Kefu Xue; Ann Winans; Eric Walowit
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Paper Abstract

This study addresses how to generate high spatial resolution image data from a low spatial resolution imaging source. An edge-restricted spatial interpolation algorithm is developed to increase the image resolution and at the same time to enhance the sharp edges and details from the original imaging source. The algorithm is based on a cubic spline-under-tension interpolation kernel. The weights of the interpolation kernel can be adjusted adaptively according to the edge information in the neighborhood of the interpolated pixels. The algorithm can be applied to a relatively low spatial resolution image source, such as video, to generate high-resolution image data for high-quality printing devices.

Paper Details

Date Published: 1 April 1992
PDF: 10 pages
J. Electron. Imag. 1(2) doi: 10.1117/12.55185
Published in: Journal of Electronic Imaging Volume 1, Issue 2
Show Author Affiliations
Kefu Xue, Wright State Univ. (United States)
Ann Winans, Wright State Univ. (United States)
Eric Walowit, Eric Walowit Associates (United States)

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