diff --git a/RGB_traces.m b/RGB_traces.m
new file mode 100644
index 0000000..cc80136
--- /dev/null
+++ b/RGB_traces.m
@@ -0,0 +1,28 @@
+## Copyright (C) 2023 Loic
+##
+## This program is free software: you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation, either version 3 of the License, or
+## (at your option) any later version.
+##
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+## GNU General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with this program. If not, see .
+
+## -*- texinfo -*-
+## @deftypefn {} {@var{retval} =} RGB_traces (@var{input1}, @var{input2})
+##
+## @seealso{}
+## @end deftypefn
+
+## Author: Loic
+## Created: 2023-02-06
+
+function retval = RGB_traces (image, iter)
+ I = imread (image);
+
+endfunction