wavezero.m

冈萨雷斯的经典教材数字图像处理的matlab版源代码

function [nc, g8] = wavezero(c, s, l, wname)
%WAVEZERO Zeroes wavelet transform detail coefficients. 
%   [NC, G8] = WAVEZERO(C, S, L, WNAME) zeroes the level L detail
%   coefficients in wavelet decomposition structure [C, S] and
%   computes the resulting inverse transform with respect to WNAME
%   wavelets.

%   Copyright 2002-2004 R. C. Gonzalez, R. E. Woods, & S. L. Eddins
%   Digital Image Processing Using MATLAB, Prentice-Hall, 2004
%   $Revision: 1.4 $  $Date: 2003/10/13 01:31:35 $

[nc, foo] = wavecut('h', c, s, l);
[nc, foo] = wavecut('v', nc, s, l);
[nc, foo] = wavecut('d', nc, s, l);
i = waveback(nc, s, wname);
g8 = im2uint8(mat2gray(i));
figure; imshow(g8);