文件名称:Pudn
介绍说明--下载内容来自于网络,使用问题请自行百度
A filter bank structure that can deal effectively with piecewise smooth images with smooth contours, was proposed by Minh N Do and Martin Vetterli. The resulting image expansion is a directional multiresolution analysis framework composed of contour segments, and thus is named contourlet. This will overcome the challenges of wavelet and curvelet transform. Contourlet transform is a double filter bank structure. It is implemented by the pyramidal directional filter bank (PDFB) which decomposes images into directional subbands at multiple scales. In terms of structure the contourlet transform is a cascade of a Laplacian Pyramid and a directional filter bank. In essence, it first use a wavelet-like transform for edge detection, and then a local directional transform for contour segment detection. The contourlet transform provides a sparse representation for two-dimensional piecewise smooth signals that resemble images.
(系统自动生成,下载前可以参看下载内容)
下载文件列表
Pudn/
Pudn/gabor_fn.m
Pudn/gabor_program.m
Pudn/modulate2.m
Pudn/nsctdec.m
Pudn/nsctrec.m
Pudn/nsdfbdec.m
Pudn/nsdfbrec.m
Pudn/nsfbdec.m
Pudn/nsfbrec.m
Pudn/nssfbdec.m
Pudn/nssfbrec.m
Pudn/parafilters.m
Pudn/qupz.m
Pudn/README.txt
Pudn/gabor_fn.m
Pudn/gabor_program.m
Pudn/modulate2.m
Pudn/nsctdec.m
Pudn/nsctrec.m
Pudn/nsdfbdec.m
Pudn/nsdfbrec.m
Pudn/nsfbdec.m
Pudn/nsfbrec.m
Pudn/nssfbdec.m
Pudn/nssfbrec.m
Pudn/parafilters.m
Pudn/qupz.m
Pudn/README.txt
本网站为编程资源及源代码搜集、介绍的搜索网站,版权归原作者所有! 粤ICP备11031372号
1999-2046 搜珍网 All Rights Reserved.