gusucode.com > 《MATLAB图像与视频处理实用案例详解》代码 > 《MATLAB图像与视频处理实用案例详解》代码/第 15 章 基于小波的图像压缩技术/waverec_process.m
function x = waverec_process(cf_vec, dim_vec, wave_name, th) if nargin < 4 th = 10; end [lf, hf] = wfilters(wave_name, 'r'); dn = 3; num = (length(cf_vec)-1)/dn; ya = cf_vec{1}; for i = 1 : num yv = cf_vec{(i-1)*3+2}; yh = cf_vec{(i-1)*3+3}; yd = cf_vec{(i-1)*3+4}; yv(abs(yv)<th) = 0; yh(abs(yh)<th) = 0; yd(abs(yd)<th) = 0; ya = idwt2_process(ya, yv, yh, yd, lf, hf, dim_vec(i+1,:)); end x = im2uint8(mat2gray(ya)); figure; imshow(x, []); title('重构图像');