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diff --git a/125/CH6/EX6.21/Fig6_21.sce b/125/CH6/EX6.21/Fig6_21.sce
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+//Caption:Scilab code to Perform median filtering

+//Fig6.21

+//page 352

+clc;

+close;

+c = imread('E:\DIP_JAYARAMAN\Chapter6\cameraman.jpg');//SIVP toolbox

+N = input('Enter the window size'); 

+a = double(imnoise(c,'salt & pepper',0.2));

+[m,n] = size(a);

+b = a;

+if(modulo(N,2)==1)

+  Start = (N+1)/2;

+  End = Start;

+  limit1 = (N-1)/2;

+  limit2 = limit1;

+else

+  Start = N/2;

+  End = Start+1;

+  limit1 = (N/2)-1;

+  limit2 = limit1+1;

+end

+for i = Start:(m-End+1)

+    for j = Start:(n-End+1)

+        I =1;

+        for k = -limit1:limit2

+            for l = -limit1:limit2

+                mat(I)= a(i+k,j+1)

+                I = I+1;

+            end

+        end

+        mat = gsort(mat);

+        if(modulo(N,2)==1)

+        b(i,j) = (mat(((N^2)+1)/2));

+        else

+        b(i,j) = (mat((N^2)/2)+mat(((N^2)/2)+1))/2;

+        end

+    end

+end

+a = uint8(a);

+b = uint8(b);

+figure

+ShowImage(c,'Original Image') 

+title('Original Image')

+figure

+ShowImage(a,'noisy image') 

+title('noisy image')

+figure

+ShowImage(b,'Median Filtered Image')

+title('5x5 Median Filtered Image')
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diff --git a/125/CH6/EX6.21/Fig6_21_Median_Filtering_GrayImage.JPG b/125/CH6/EX6.21/Fig6_21_Median_Filtering_GrayImage.JPG
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+++ b/125/CH6/EX6.21/Fig6_21_Median_Filtering_GrayImage.JPG