diff --git a/FFT_heart_rate.m b/FFT_heart_rate.m
index 5580dbe..1989734 100644
--- a/FFT_heart_rate.m
+++ b/FFT_heart_rate.m
@@ -5,7 +5,7 @@
 %
 % Output : Fast Fourier Transform of X(t): a graph representing the Single-Sided Amplitude Spectrum of X(t)
 %
-% Author: Maryne DEY (maryne.dey@ecam.fr)
+% Author: Loic Delattre and Maryne DEY (maryne.dey@ecam.fr, loic.delattre@ecam.fr)
 % Date: 07/02/2023
 %%%%%%%%%%%%%%%%%%%%%
 
@@ -17,7 +17,7 @@ clc
 pkg load io
 
 %Normalization of the data
-data = csvread('RGB_database/RGB_data.csv');
+data = frames_RGBs ()';
 standard_deviation = std(data);
 mean_value = mean(data);
 
@@ -26,15 +26,16 @@ for i = 1:size(data,1)
 endfor
 
 %Input characteristics
-Fs = 970/32;           % Sampling frequency = 970 images in 32 seconds                  
+img_num = length(data);
+Fs = img_num/32;           % Sampling frequency = X images in 32 seconds                  
 T = 1/Fs;              % Sampling period       
-L = 970;               % Length of signal = 32 seconds
+L = img_num;               % Length of signal = 32 seconds
 t = (0:L-1)*T;         % Time vector
 
 X = normalized_data_G;
 
 %Plot of the RGB data in the time domain
-plot(t(1:970),X(1:970))
+plot(t(1:L),X(1:L))
 title("Signal")
 xlabel("t (milliseconds)")
 ylabel("X(t)")