function parameters = gui_number_of_features(parameters)
pattern = unique(parameters.dictionnary.rect_param(1 , :));
parameters.dictionnary.ny = str2double(get(parameters.gui.database.editbutton1 , 'String'));
parameters.dictionnary.nx = str2double(get(parameters.gui.database.editbutton2 , 'String'));
h = [];
w = [];
for i = 1:length(pattern) %parameters.dictionnary.nP
index = find(parameters.dictionnary.rect_param(1 , :) == pattern(i));
w = [w , parameters.dictionnary.rect_param(2 , index(1))];
h = [h , parameters.dictionnary.rect_param(3 , index(1))];
end
parameters.dictionnary.nF = nbfeat_haar(parameters.dictionnary.ny , parameters.dictionnary.nx , h , w);