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generate_rankdataset.m
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Level1_folder = '/home/wlzhang/data/DIV2K/DIV2K_train_ESRGAN/'
Level2_folder = '/home/wlzhang/data/DIV2K/DIV2K_train_srgan/'
Level3_folder = '/home/wlzhang/data/DIV2K/DIV2K_train_srres/'
Level1_filepaths = dir(fullfile(Level1_folder,'*.png'));
Level2_filepaths = dir(fullfile(Level2_folder,'*.png'));
Level3_filepaths = dir(fullfile(Level3_folder,'*.png'));
Level1_patchsave_path = '/home/wlzhang/RankSRGAN/data/Rank_dataset_test/DF2K_train_patch_esrgan';
Level2_patchsave_path = '/home/wlzhang/RankSRGAN/data/Rank_dataset_test/DF2K_train_patch_srgan';
Level3_patchsave_path = '/home/wlzhang/RankSRGAN/data/Rank_dataset_test/DF2K_train_patch_srres';
mkdir(Level3_patchsave_path)
mkdir(Level2_patchsave_path)
mkdir(Level1_patchsave_path)
addpath utils
patch_sz = 296;
stride = 148; %300 148 200
blocksizerow = 96;
blocksizecol = 96;
blockrowoverlap = 0;
blockcoloverlap = 0;
total_count = 0;
selected_count = 0;
display_flag = 0;
save_count = 0;
count_class = 0;
fprintf('-------- Strating -----------');
for k = 1 : length(Level1_filepaths)
tic;
fprintf('Processing img: %s\n',Level1_filepaths(k).name);
fprintf('Processing srganimg: %s\n',Level2_filepaths(k).name);
level1_img = imread(fullfile(Level1_folder,Level1_filepaths(k).name));
level2_img = imread(fullfile(Level2_folder,Level2_filepaths(k).name));
%srres_img = imread(fullfile(Level3_folder,srres_filepaths(k).name));
if display_flag == 1
subplot(1,2,1);
imshow(level1_img);
end
img_height = size(level1_img,1);
img_width = size(level1_img,2);
h_num = ceil((img_height-patch_sz)/stride);
w_num = ceil((img_width-patch_sz)/stride);
count = 0;
patch_list = zeros(patch_sz,patch_sz,3,1);
% esrgan_patch_list1 = zeros(patch_sz,patch_sz,3,200);
% srres_patch_list1 = zeros(patch_sz,patch_sz,3,200);
%srgan_patch_list1 = zeros(patch_sz,patch_sz,3,200);
location_list = zeros(1,2,15);
i = 0;
for h = 1:stride:img_height-patch_sz
for w = 1:stride:img_width-patch_sz
count = count +1;
total_count = total_count + 1;
level1_img_patch = level1_img(h:h+patch_sz-1,w:w+patch_sz-1,:);
if(size(level1_img_patch,3)==3)
im = rgb2gray(level1_img_patch);
end
im = double(im);
sharpness = compute_sharpness(im,blocksizerow,blocksizecol,blockrowoverlap,blockcoloverlap);
if sharpness >= 40
i = i+1;
if display_flag == 1
subplot(1,2,1);
rectangle('Position',[w,h,patch_sz,patch_sz],'edgecolor','r');
end
selected_count = selected_count + 1;
level1_patch_list(:,:,:,i) = level1_img_patch;
location_list(:,:,i) = [h,w];
else
if display_flag == 1
subplot(1,2,1);
rectangle('Position',[w,h,patch_sz,patch_sz],'edgecolor','k');
end
end
end
end
fprintf('patch numbel:%d ',i);
count1 = 0;
count2 = 0;
count3 = 0;
for j = 1:i
level1_save_patch = uint8(level1_patch_list(:,:,:,j));
level1_NIQE = calc_NIQE(level1_save_patch);
patch_h = location_list(1,1,j);
patch_w = location_list(1,2,j);
Level3_img_patch=get_sigle_patch(Level3_folder,Level1_filepaths(k).name,...
Level3_patchsave_path,...
[num2str(save_count) '_srres.png'],...
patch_h,patch_w,patch_sz);
level2_img_patch=get_sigle_patch(Level2_folder,Level1_filepaths(k).name,...
Level2_patchsave_path,...
[num2str(save_count) '_srgan.png'],...
patch_h,patch_w,patch_sz);
level2_NIQE = calc_NIQE(level2_img_patch);
Level3_NIQE = calc_NIQE(Level3_img_patch);
if abs(level2_NIQE - level1_NIQE) > 0.1
count1 = count1+1;
level1_patch_list1(:,:,:,count1) = level1_save_patch;
level2_patch_list1(:,:,:,count1) = level2_img_patch;
Level3_patch_list1(:,:,:,count1) = Level3_img_patch;
end
end
fprintf('distance good:%d ',count1);
if count1 < 200 %200
for idx= 1:count1
save_count = save_count + 1;
save_name = [num2str(save_count) '_esrgan.png'];
level1_patch = uint8(level1_patch_list1(:,:,:,idx));
imwrite(level1_patch,fullfile(Level1_patchsave_path,save_name));
save_name = [num2str(save_count) '_srgan.png'];
level2_patch = uint8(level2_patch_list1(:,:,:,idx));
imwrite(level2_patch,fullfile(Level2_patchsave_path,save_name));
save_name = [num2str(save_count) '_srres.png'];
Level3_patch = uint8(Level3_patch_list1(:,:,:,idx));
imwrite(Level3_patch,fullfile(Level3_patchsave_path,save_name));
end
else
rand_order = randperm(count1);
for idx= 1:200
save_count = save_count + 1;
save_name = [num2str(save_count) '_esrgan.png'];
level1_patch = uint8(level1_patch_list1(:,:,:,rand_order(idx)));
imwrite(level1_patch,fullfile(Level1_patchsave_path,save_name));
save_name = [num2str(save_count) '_srgan.png'];
level2_patch = uint8(level2_patch_list1(:,:,:,rand_order(idx)));
imwrite(level2_patch,fullfile(Level2_patchsave_path,save_name));
save_name = [num2str(save_count) '_srres.png'];
Level3_patch = uint8(Level3_patch_list1(:,:,:,rand_order(idx)));
imwrite(Level3_patch,fullfile(Level3_patchsave_path,save_name));
end
end
fprintf('Current save patches:%d\n',save_count);
end
toc;
fprintf('Total image patch: %d\n',total_count);
fprintf('Selected image patch: %d\n',selected_count);
fprintf('Generated image patch: %d\n',save_count);