function [a,b,c,Image] = test(handles)
a = 5;
b = 6;
c = 7;
%%%%%%%%%%%
[filename, pathname] = uigetfile( ...
        {'*.bmp;*.asc;*.jpg;','Thermographie Daten (*.bmp,*.asc)';
        '*.bmp',  'Bitmap 8bit (*.bmp)'; ...
        '*.asc','ASCII (*.asc)'; ...
        '*.jpg','JPEG (*.jpg)'; ...
        '*.*',  'All Files (*.*)'}, ...
        'Wähle ein Thermographiebild');

    if  isequal(filename,0) || isequal(pathname,0);
        disp('User pressed cancel');
    else
        [Image,map]=imread(fullfile(pathname, filename));
    end
end