www.pudn.com > guided-filter-code-v1.rar > example_flash.m, change:2010-07-08,size:607b


% example: flash/noflash denoising 
% figure 8 in our paper 
% *** Errata ***: there is a typo in the caption of figure 8, the eps should be 0.02^2 instead of 0.2^2; sig_r should be 0.02 instead of 0.2. 
 
close all; 
 
I = double(imread('.\img_flash\cave-flash.bmp')) / 255; 
p = double(imread('.\img_flash\cave-noflash.bmp')) / 255; 
 
r = 8; 
eps = 0.02^2; 
 
q = zeros(size(I)); 
 
q(:, :, 1) = guidedfilter(I(:, :, 1), p(:, :, 1), r, eps); 
q(:, :, 2) = guidedfilter(I(:, :, 2), p(:, :, 2), r, eps); 
q(:, :, 3) = guidedfilter(I(:, :, 3), p(:, :, 3), r, eps); 
 
figure(); 
imshow([I, p, q], [0, 1]);