fm2bm

src_dir = '../uvmat/1/';
dst_dir = '../bm/1/';

files = dir(src_dir);
n = length(files);

% the loop should be modified based on how you organize your images
parfor k = 1 : n
    % check if the output directory exists, otherwise, create one
    t = dst_dir;
    if ~exist(t, 'dir')
        mkdir(t);
    end

    currf = files(k).name;
    if ~isempty(strfind(currf, '.mat'))
        fname = fullfile(src_dir, currf);
        disp(k);
        d = load(fname);
        % read uv
        uv = d.uv;
        uv = im2single(uv);
        % flip v
        uv = cat(3, uv(:, :, 3), 1.0 - uv(:, :, 2), uv(:, :, 1));
        % compute backward mapping
        bm = uv2mp(uv);
        % save file
        save(fullfile(t, currf), 'bm','-v7');
    end
end