Image enhancement using nonlinear filters with spatially adaptive neighborhoods

被引：2
|
作者：
Kober, V [1 ]
Mozerov, M [1 ]
Alvarez-Borrego, J [1 ]
Silva, HH [1 ]
机构：
[1] CICESE, Div Fis Aplicada, Dept Opt, Ensenada 22860, Baja California, Mexico
来源：
APPLICATIONS OF DIGITAL IMAGE PROCESSING XXIV | 2001年 / 4472卷
关键词：
image enhancement; unsharp masking; nonlinear adaptive filters;
D O I：
10.1117/12.449781
中图分类号：
TP31 [计算机软件];
学科分类号：
081202 ; 0835 ;
摘要：
A new technique for local contrast enhancement using rank-order filters with spatially adaptive neighborhoods is proposed. The technique is based on the unsharp masking operation. However, instead a linear lowpass filtering we use various rank-order smoothing operations. The smoothing is performed over the pixels of spatially adaptive neighborhoods of details to be enhanced and their surrounding backgrounds. Various rank-order filters for local enhancement of small and middle-size details are implemented. Computer simulation results using a real aerial image are provided and discussed.
引用
收藏
页码：508 / 517
页数：4
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