diff --git a/SaturnRingsHurst.m b/SaturnRingsHurst.m
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+% Exponente de Hurst en anillos de Saturno
+% Programa para estudiar exponente de Hurst y dimensión fractal de la estructura de anillos
+
+% Trabajo de Tesis - UNLP
+% Horacio Daniel Salomone
+
+% Start
+
+%Image reading
+AS1=imread('PIA22418.jpg'); 
+
+%Correct to a circle
+image(AS1), axis image;
+
+%Shows the figure
+subplot(2,2,1);
+imshow(AS1),title('Imágen Original-Cassini - Anillos de Saturno 5');
+
+%Cuts the figure and shows the cut
+AS2=imcrop;
+subplot(2,2,2);
+imshow(AS2),title('Imagen Recortada-Anillos de Saturno 5');
+
+%Loop to get the grayscale profiles
+
+    %image size AS2
+    sz=size(AS2);
+    n=sz(1,1);
+            
+    %Intensity profile
+    Perfil='Vectores Perfil Intensidad.txt';
+    fid=fopen(Perfil,'a+');
+    formatSpec='%9.5f\r\n';
+      
+    %Int vectors
+        for i=1:n
+        Int=improfile(AS2,[1 1018],[1 (0+i)]);
+        %Recorta ceros del vector Int
+        Int(isnan(Int))=0;
+        %Int(Int==0)=[];
+        l=1;
+            while Int(l)==0
+                l=l+1;
+            end
+        L=length(Int);
+        r=1;
+            while Int(L-r)==0
+                r=r+1;
+            end
+        Int(L-r+1:L)=[];    
+        Int(1:l)=[];
+        end
+        
+%Hurst exponent calculation
+    for i=1:120
+    m=floor(L/(2*i));
+        for j=1:i
+        r=Int(1+(j-1)*m:j*m);
+        M=mean(r);
+        x=(r-M);
+        V=cumsum(x);
+        R(j)=max(V)-min(V);
+        S(j)=std(r);
+        end
+    tau(i)=m;
+    RS(i)=mean(R./S);
+    end
+    
+%Linear regression to obtain Hurst
+    subplot (2,2,3);
+    plot(log10(tau),log10(RS),'+')
+    xlabel('log(\tau)','FontSize',12)
+    ylabel('log(R/S)','FontSize',12)
+    hold on
+    q=polyfit(log10(tau),log10(RS),1);
+    t=0.5:0.1:3;
+    y=q(1)*t+(q(2));
+    plot(t,y,'r','LineWidth',2)
+    %text(1,2,['y =' num2str(q(1)),' x ' num2str(q(2))],'FontSize',12)
+    hold off
+