nsct
所属分类：图形图像处理
开发工具：matlab
文件大小：430KB
下载次数：78
上传日期：2012-09-06 16:13:54
上 传 者：
mandy2008
说明： Contourlet 变换的平移不变性在奇异性方面导致了伪Gibbs 效应。而NSCT是一种平移不变、多尺度和多分辨率的冗余变换，它对滤波器上采样再进行分析和综合滤波，这种滤波器的设计及重构易于实现，能更好地采集频率且具规律性，在图像去噪中得到了广泛的应用。
(Contourlet transform translation invariance in singularity aspects led to the pseudo Gibbs effect. And NSCT is a kind of translation invariant, multi-scale and multi-resolution redundant transform, it to filter on sampling and analysis and comprehensive filtering, this kind of filter design and reconstruction is easy to realize, and can better acquisition frequency and with regularity, in image denoising has been widely used in the field.)
文件列表:
nsct\atrousc.c (2969, 2012-09-04)
nsct\atrousc.dll.old (7168, 2012-09-04)
nsct\atrousc.mexmac (8664, 2012-09-04)
nsct\atrousc.mexw32 (20480, 2012-09-04)
nsct\atrousdec.m (1234, 2012-09-04)
nsct\atrousfilters.m (19406, 2012-09-04)
nsct\atrousrec.m (1012, 2012-09-04)
nsct\barbara.png (177851, 2012-09-04)
nsct\decdemo.m (3214, 2012-09-04)
nsct\dfbdecdemo.m (1495, 2012-09-04)
nsct\dfilters.m (13234, 2012-09-04)
nsct\dmaxflat.m (2607, 2012-09-04)
nsct\efilter2.m (1103, 2012-09-04)
nsct\extend2.m (1861, 2012-09-04)
nsct\ld2quin.m (856, 2012-09-04)
nsct\ldfilter.m (662, 2012-09-04)
nsct\mctrans.m (854, 2012-09-04)
nsct\modulate2.m (775, 2012-09-04)
nsct\nsctdec.m (4662, 2012-09-04)
nsct\nsctrec.m (3257, 2012-09-04)
nsct\nsdfbdec.m (5046, 2012-09-04)
nsct\nsdfbrec.m (4931, 2012-09-04)
nsct\nsfbdec.m (889, 2012-09-04)
nsct\nsfbrec.m (821, 2012-09-04)
nsct\nssfbdec.m (2424, 2012-09-04)
nsct\nssfbrec.m (2785, 2012-09-04)
nsct\parafilters.m (1552, 2012-09-04)
nsct\peppers.png (160674, 2012-09-04)
nsct\qupz.m (1161, 2012-09-04)
nsct\resampz.m (1981, 2012-09-04)
nsct\shownsct.m (1001, 2012-09-04)
nsct\symext.m (888, 2012-09-04)
nsct\upsample2df.m (161, 2012-09-04)
nsct\wfilters.m (3326, 2012-09-04)
nsct\zconv2.c (4056, 2012-09-04)
nsct\zconv2.dll.old (7168, 2012-09-04)
nsct\zconv2.mexmac (8664, 2012-09-04)
nsct\zconv2.mexw32 (20480, 2012-09-04)
nsct\zconv2S.c (4042, 2012-09-04)
... ...
Nonsubsampled Contourlet Toolbox (version 1.0.0, August 2004)
This toolbox contains Matlab files that implement the nonsubsample contourlet transform and its utility functions. Some Matlab files are the same as those in Contourlet Toolbox.
The main functions are the following: nsctdec, nsctrec, n***bdec, n***brec.
+ nsctdec: Nonsubsampled contourlet decomposition.
+ nsctrec: Nonsubsampled contourlet reconstruction.
+ n***bdec: Nonsubsampled directional filter bank decomposition.
+ n***brec: Nonsubsampled directional filter bank reconstruction.
In addition, there are several demos (decdemo) that provide examples on how to use these functions.
Note: There are three mex file (zconv2.c, zconv2S.c, atrousc.c) in the nonsubsampled Contourlet Toolbox that might need to be recompiled.
This can be done by typing from the Matlab command window
>> mex zconv2D_O.c
References:
1. Jianping Zhou, Arthur L. Cunha, and Minh N. Do, "Nonsubsampled contourlet transform: construction and application in enhancement", submitted, International Conference on Image Processing05, 2005.
2. Arthur L. Cunha, Jianping Zhou, and Minh N. Do, "Nonsubsampled contourlet transform: filter design and application in image denoising," submitted, International Conference on Image Processing05, 2005.
3. Arthur L. Cunha, Jianping Zhou, and Minh N. Do, "Nonsubsampled contourlet transform: Theory, design, and applications", IEEE Transactions on Image Processing, to be submitted.
01/20/05
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