利用数字图像处理技术衰减手印图像的半色调背景细节

Proceedings The Institute of Electrical and Electronics Engineers. 29th Annual 1995 International Carnahan Conference on Security Technology Pub Date : 1995-10-18 DOI:10.1109/CCST.1995.524745

P.M. Fabrizi, S. Bramble, G. Jackson

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引用次数: 1

摘要

指纹图像的频域处理对于减少周期性背景干扰具有重要意义。加工的成功和结果的质量取决于许多因素，包括结构和选择的加工方法。本文表明，在某些情况下，可以利用计算机自动生成频域滤波器来确定最合适的频域滤波器来衰减干扰背景。半色调印刷背景已取得成功。

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Attenuation of half-tone background detail from fingermark images using digital image processing techniques

Frequency domain processing of fingermark images is valuable for reducing interfering periodic backgrounds. The success of the processing and the quality of the results depend upon a number of factors including structure and chosen processing method. This paper shows that in some circumstances it is possible to determine the most appropriate frequency domain filter for attenuation of interfering backgrounds using automatic computer based generation of frequency domain filters. Success has been achieved with half-tone printed backgrounds.

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Proceedings The Institute of Electrical and Electronics Engineers. 29th Annual 1995 International Carnahan Conference on Security Technology

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