A QUANTITATIVE COMPARISON OF EDGE-PRESERVING SMOOTHING TECHNIQUES

被引：17

作者：

DUBUF, JMH

CAMPBELL, TG

机构：

[1] Signal Processing Laboratory, Swiss Federal Institute of Technology, CH-1015 Lausanne, EPFL-Ecublens

来源：

SIGNAL PROCESSING | 1990年 / 21卷 / 04期

关键词：

Adaptive filters; edge preservation; noise smoothing; quantitative comparison;

D O I：

10.1016/0165-1684(90)90099-K

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Edge-preserving smoothing techniques are compared by considering a test image which contains a central disk-shaped region with a step or a ramp edge against a uniform background. Free parameters are the amplitude of Gaussian noise added, the edge slope and the number of filtering iterations. The quantitative comparison measure is the normalised squared error between the filtered noisy image and the noise-free image, on the uniform image regions and on the transition region separately. The filters considered are analysed with respect to their performance under variations in the free parameters and their computer-time consumption. Results obtained are compared with published data available. © 1990.

引用

页码：289 / 301

页数：13

共 15 条

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