function teste()

 for k=1:99
    %if exist(Name, 'file') == 2
    nome_imagem=strcat(int2str(k),'.jpg');
    x=imread(nome_imagem);

    nome_fich=strcat(int2str(k),'.txt');
    fid=fopen(nome_fich,'w');

    for i=1:size(x,1)
        for j =1:size(x,2)
            if x(i,j)~=0
                x(i,j)=1;
            end
        end
    end

    for i = 1:size(x,1)
        fprintf(fid,'%d\t',x(i,:));
        fprintf(fid,'\n');
    end

    fclose(fid);
 end
 end