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/main.m
clc; clear all; close all; filename = fullfile(pwd, 'images', 'cameraman.tif'); x = imread(filename); num = 2; [cf_vec, dim_vec] = wavedec_process(x, num, 'haar'); th = 10; y = waverec_process(cf_vec, dim_vec, 'haar', th); output_img(x, y, filename, th, 'png'); p = PSNR(x,y); fprintf('\n压缩前后图像的PSNR值为%.2f\n', p);