DL-Art-School/codes/scripts/back_projection/main_reverse_filter.m
XintaoWang 037933ba66 mmsr
2019-08-23 21:42:47 +08:00

26 lines
716 B
Matlab

clear; close all; clc;
LR_folder = './LR'; % LR
preout_folder = './results'; % pre output
save_folder = './results_20if';
filepaths = dir(fullfile(preout_folder, '*.png'));
max_iter = 20;
if ~ exist(save_folder, 'dir')
mkdir(save_folder);
end
for idx_im = 1:length(filepaths)
fprintf([num2str(idx_im) '\n']);
im_name = filepaths(idx_im).name;
im_LR = im2double(imread(fullfile(LR_folder, im_name)));
im_out = im2double(imread(fullfile(preout_folder, im_name)));
J = imresize(im_LR,4,'bicubic');
%tic
for m = 1:max_iter
im_out = im_out + (J - imresize(imresize(im_out,1/4,'bicubic'),4,'bicubic'));
end
%toc
imwrite(im_out, fullfile(save_folder, im_name));
end