diff --git a/normalization.m b/normalization.m
index 259dbc6..8fda588 100644
--- a/normalization.m
+++ b/normalization.m
@@ -1,9 +1,33 @@
+%%%%%%%%%%%%%%%%%%%%%
+% Task: Creating FFT of average R,G,B over a period of 30 seconds
+%
+% Input: 
+%	- CSV file containing the RGB data for each pixels of the region of interest
+%
+% Output:
+%	- Fast Fourier Transform of the colors over time
+%
+% author: Delattre Loïc, Dey Maryne (loic.delattre@ecam.fr, maryne.dey@ecam.fr)
+% date: 06/02/2023
+%%%%%%%%%%%%%%%%%%%%%
+
 pkg load io %% to be able to extract from external format (excel)
 
-data = xlsread('RGB_data_monfront.xlsx')
+data = csvread('RGB_data_monfront.xlsx')
 standard_deviation = std(data)
 mean_value = mean(data)
 
+for i = 1:size(data,1)
+  normalized_data_G(i,1) = (data(i,2)-mean_value(2))/standard_deviation(2); %%2 and not 1 because green is the 2nd color
+endfor
+
+fft_green = fft(normalized_data_G)
+
+plot([1:size(fft_green,1)],fft_green)
+
+
+
+
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %%For all the colors
 %%for j = 1:3
@@ -11,12 +35,4 @@ mean_value = mean(data)
 %%    normalized_data(i,j) = (data(i,j)-mean_value(j))/standard_deviation(j);
 %%  endfor
 %%endfor
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-for i = 1:size(data,1)
-  normalized_data_G(i,1) = (data(i,2)-mean_value(2))/standard_deviation(2); %%2 and not 1 because green is the 2nd color
-endfor
-
-fft_green = fft(normalized_data_G)
-
-plot([1:size(fft_green,1)],fft_green)
\ No newline at end of file
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\ No newline at end of file