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Render_BSD_streak_typewise.m~
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Render_BSD_streak_typewise.m~
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% render multi-layer rain
% no haze model
% 1. render most dense rain streaks
streak_root = 'data/Streaks_Garg06/';
image_root = 'data/BSD300/';
img_file_list = dir([image_root, '*.jpg']);
num_of_strtype = 11;
num_of_file = length(img_file_list);
filelist_name = 'filelist'
if ~exist('out', 'file')
mkdir('out')
end
if ~exist(filelist_name, 'file')
mkdir(filelist_name)
end
rain_list_stats = fopen(sprintf('%s/rain.txt', filelist_name), 'w');
sparse_list_stats = fopen(sprintf('%s/sparse.txt', filelist_name), 'w');
middle_list_stats = fopen(sprintf('%s/mid.txt', filelist_name), 'w');
dense_list_stats = fopen(sprintf('%s/dense.txt', filelist_name), 'w');
clean_list_stats = fopen(sprintf('%s/norain.txt', filelist_name), 'w');
for fileindex = 1%:num_of_file
im = imread([image_root, img_file_list(fileindex).name]);
[~, filename, ~] = fileparts(img_file_list(fileindex).name);
bh = size(im, 1);
bw = size(im, 2);
for str_index = 1%:num_of_strtype
clean_final = double(im);
st_final = zeros(bh, bw, 3);
%str_file_list = dir([streak_root, sprintf('*-%d.png', str_index)]);
str_file_list = dir([streak_root, '*.png']);
stage_st_final = zeros(bh,bw,3);
% dense
for i = 1:8
strnum = randi(length(str_file_list));
st = imread([streak_root, str_file_list(strnum).name]);
st = st(4:end, :,:);
st = imresize(st, 4);
newst = zeros(size(st));
bwst = imbinarize(rgb2gray(st));
mask = bwareafilt(bwst, [0, 1000]);
for c = 1:3
temp = st(:,:,c);
%temp(mask==0) = 0;
temp = temp.*uint8(mask);
newst(:,:,c) = imgaussfilt(temp, 1);
end
newst = imresize(newst, [bh, bw]);
tr = rand() * 0.2 + 0.25;
clean_final = clean_final + double(newst) * tr;
st_final = st_final + double(newst)*tr;
stage_st_final = stage_st_final + double(newst)*tr;
end
% write dense streak
imwrite(uint8(stage_st_final), sprintf('out/str%s-type%d-dense.png', filename, str_index));
% write dense streak file into file list
fprintf(dense_list_stats, sprintf('out/str%s-type%d-dense.png\n', filename, str_index));
disp('dense'); disp(mean(stage_st_final(:)))
% middle
stage_st_final = zeros(bh,bw,3);
for i = 1:8
strnum = randi(length(str_file_list));
st = imread([streak_root, str_file_list(strnum).name]);
st = st(4:end, :,:);
st = imresize(st, 4);
newst = zeros(size(st));
bwst = imbinarize(rgb2gray(st));
mask = bwareafilt(bwst, [800, 4000]);
for c = 1:3
temp = st(:,:,c);
%temp(mask==0) = 0;
temp = temp.*uint8(mask);
newst(:,:,c) = imgaussfilt(temp, 2);
end
newst = imresize(newst, 0.5);
sh = size(newst, 1);
sw = size(newst, 2);
for iter = 1:6
row = randi(sh - bh);
col = randi(sw - bw);
selected = newst(row:row+bh-1, col:col+bw-1, :);
tr = rand() * 0.15 + 0.20;
clean_final = clean_final + double(selected) * tr;
st_final = st_final + double(selected)*tr;
stage_st_final = stage_st_final + double(selected)*tr;
end
end
% middle streak image
imwrite(uint8(stage_st_final),sprintf('out/str%s-type%d-mid.png', filename, str_index));
% imwrite middle streak file into file list
fprintf(middle_list_stats, sprintf('out/str%s-type%d-mid.png\n', filename, str_index));
disp('middle'); disp(mean(stage_st_final(:)))
% sparse
stage_st_final = zeros(bh,bw,3);
for i = 1:3
strnum = randi(length(str_file_list));
st = imread([streak_root, str_file_list(strnum).name]);
st = st(4:end, :,:);
st = imresize(st, 4);
newst = zeros(size(st));
bwst = imbinarize(rgb2gray(st));
mask = bwareafilt(bwst, [2000, 6000]);
for c = 1:3
temp = st(:,:,c);
%temp(mask==0) = 0;
temp = temp.*uint8(mask);
%newst(:,:,c) = temp;
newst(:,:,c) = imgaussfilt(temp, 1);
end
sh = size(newst, 1);
sw = size(newst, 2);
for iter = 1:6
row = randi(sh - bh);
col = randi(sw - bw);
selected = newst(row:row+bh-1, col:col+bw-1, :);
tr = rand() * 0.1 + 0.10;
clean_final = clean_final + double(selected) * tr;
st_final = st_final + double(selected)*tr;
stage_st_final = stage_st_final + double(selected)*tr;
end
end
% write rain image
imwrite(uint8(clean_final), sprintf('out/img%s-type%d-sparse.png',filename, str_index));
% write sparse rain streak image
imwrite(uint8(stage_st_final), sprintf('out/str%s-type%d-sparse.png', filename, str_index));
% write all rain streak image
imwrite(uint8(st_final), sprintf('out/str%s-type%d-all.png', filename, str_index));
% write rain image into file list
fprintf(rain_list_stats, sprintf('out/img%s-type%d-sparse.png\n',filename, str_index));
% write sparse
fprintf(sparse_list_stats, sprintf('out/str%s-type%d-sparse.png\n', filename, str_index));
% write no rain
fprintf(clean_list_stats, sprintf('BSD300/%s\n', img_file_list(fileindex).name));
disp('sparse'); disp(mean(stage_st_final(:)));
end
end