An edge-restricted spatial interpolation algorithm

Kefu Xue; Ann Winans; Eric Walowit

doi:10.1117/12.55185

1 April 1992 An edge-restricted spatial interpolation algorithm

Kefu Xue, Ann Winans, Eric Walowit

Author Affiliations +

Journal of Electronic Imaging, Vol. 1, Issue 2, (April 1992). https://doi.org/10.1117/12.55185

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.

Citation Download Citation

Kefu Xue, Ann Winans, and Eric Walowit "An edge-restricted spatial interpolation algorithm," Journal of Electronic Imaging 1(2), (1 April 1992). https://doi.org/10.1117/12.55185

Published: 1 April 1992

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