Spatial domain algorithm for video-to-printing image resolution conversion

Kefu Xue; Ann Winans; Cailong Zhang

doi:10.1117/12.19961

1 August 1990 Spatial domain algorithm for video-to-printing image resolution conversion

Kefu Xue, Ann Winans, Cailong Zhang

Proceedings Volume 1258, Image Communications and Workstations; (1990) https://doi.org/10.1117/12.19961
Event: Electronic Imaging: Advanced Devices and Systems, 1990, Santa Clara, CA, United States

Abstract

It has become increasingly important to get high quality prints from TV or other video signals in the desktop publishing and multi-media environment. Normally, a video signal has very low spatial resolution compared with the spatial resolution of printing devices. Hard copy from direct printing of a video signal is usually very poor in quality. To improve the video signal spatial resolution for printing, the algorithm presented in this paper applies an adaptive spatial interpolation technique to the video signal. The algorithm is based on a computer graphics curve-fitting algorithm with the addition of edge-restricted interpolation to sharpen edges and to enhance image details. Therefore, the new interpolation algorithm will not only improve the spatial resolution but also improve the sharpness of the printed image. In this paper, the aspects of theoretical development of the new algorithm will be discussed and some simulation results will be shown and evaluated to present the effect of the algorithm.

Citation Download Citation

Kefu Xue, Ann Winans, and Cailong Zhang "Spatial domain algorithm for video-to-printing image resolution conversion", Proc. SPIE 1258, Image Communications and Workstations, (1 August 1990); https://doi.org/10.1117/12.19961

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KEYWORDS

Video

Image processing

Algorithm development

Printing

Spatial resolution

Image enhancement

Image interpolation

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