save_txt_2_mat.m

function save_txt_2_mat(sequence, densematch_dir)
% convert the deepmatching txt to mat file

img_list = {sequence.image};

% assume the images from the same sequence has the same size
img_size = size(imread(img_list{1})); % assume all the image have the same size

% load dense matching
densematch_list = dir([densematch_dir '*DM*.txt']);
densematch = cell(length(img_list));
for i = 1:length(img_list)-1
    fprintf(' parsing dense matching for frame %g out of %d \n', i,length(img_list));
    
    im_1 = img_list{i}; [~,name_1,~] = fileparts(im_1);
    im_2 = img_list{i+1}; [~,name_2,~] = fileparts(im_2);
    densematch_file = [densematch_dir name_1 '-DM-' name_2 '.txt'];
    
    % read and convert sub 2 ind
    sub = load(densematch_file);
    sub(sub(:,3)==0,3) = 1;sub(sub(:,4)==0,4) = 1;
    ind_1 = sub2ind(img_size(1:2), sub(:,2), sub(:,1));
    ind_2 = sub2ind(img_size(1:2), sub(:,4), sub(:,3));
    densematch{i,i+1} = [ind_1,ind_2];
end
save([densematch_dir 'densematch.mat'],'densematch','-v7.3');

end