keep_biggest.m

来自「该程序为用MATLAB编写的一个小波变换工具箱」· M 代码 · 共 8 行

function y = keep_biggest(x,n)

% keep_biggest - keep only the n biggest coef, 
%   set the rest to zero.
%
% y = keep_biggest(x,n);
%
%   Copyright (c) 2004 Gabriel Peyr