www.gusucode.com > matlab非局部均值工具箱 > matlab非局部均值工具箱/matlab非局部均值工具箱/toolbox_nlmeans/toolbox/rescale.m
function y = rescale(x,a,b) % rescale - rescale data in [a,b] % % y = rescale(x,a,b); % % Copyright (c) 2004 Gabriel Peyr? if nargin<2 a = 0; end if nargin<3 b = 1; end m = min(x(:)); M = max(x(:)); if M-m<eps y = x; else y = (b-a) * (x-m)/(M-m) + a; end