Undefined function or method 'pdfbdec' for input arguments o

来源：学生作业帮编辑：神马作文网作业帮分类：综合作业时间：2024/11/13 17:23:37

Undefined function or method 'pdfbdec' for input arguments of type 'double'.
contourlet变换经典代码中,总是对于这个函数报错y = pdfbdec(nim,pfilt,dfilt,nlevs);help文档里也米有相关定义说明,请问如何排除此问题.我是虾米,
pdfbdec（）函数没有定义,无法调用?程序如下：
clear all;
clc;
%设定参数
pfilt = '9-7'; % choose LP decomposition filter
dfilt = 'pkva'; % choose DFB decomposition filter
nlevs = [0,0,4,4,5];
th = 3; % lead to 3*sigma threshold denoising
rho=3;
im = imread('lena512.bmp');
im = double(im)/256 ;
sig = std(im(:));
sigma = sig / rho;
% Contourlet 变换
y = pdfbdec(im,pfilt,dfilt,nlevs);
[c,s] = pdfb2vec(y);
nvar = pdfb_nest(size(im,1),size(im,2),pfilt,dfilt,nlevs); %nstd = pdfb_nest(nrows,ncols,pfilt,dfilt,nlevs)
cth = th * sigma * sqrt(nvar);
% 系数处理
c = c .* (abs(c) > cth);
% 重构
y = vec2pdfb(c,s);
cim = pdfbrec(y,pfilt,dfilt);
%显示图像
range = [0,1];
colormap(gray);
subplot(1,1,1),imagesc(cim(41:168,181:308),range); axis image off
colormap(gray);
set(gca,'FontSize',8);
title('Contourlets decomposition','FontSize',10)

你的contourlet工具包安装不正确导致你调用其中函数的时候,matlab总出现此提示
最好是将此工具把拷到某一路径下,然后用path加载此路径

Undefined function or method 'pdfbdec' for input arguments o Undefined function or method 'emd' for input arguments of ty Undefined function or method 'y' for input arguments of type Undefined function or method 'u' for input arguments of type The method IsEmpty(String) is undefined for the type The method getsession() is undefined for the type HttpServle The method selectAll() is undefined for the type productDaoI 用MATLAB求函数极限时出现 Undefined function or variable "x". Call to undefined function mysql_connect() 在Java中这样报错The method SayHi() is undefined for the type AccpT android The method getText() is undefined for the type R.str Arguments for or against giving first priority to salary and