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diff --git a/125/CH12/EX12.57/Fig12_57.sce b/125/CH12/EX12.57/Fig12_57.sce
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+//Caption: Scilab code to implement watermarking in spatial domain
+//Fig12.57
+//Page662
+clc
+close 
+a = imread('E:\DIP_JAYARAMAN\Chapter12\cameraman.jpg');
+figure
+imshow(a)
+title('Base Image');
+b = imread('E:\DIP_JAYARAMAN\Chapter12\keyimage.jpg');
+b = rgb2gray(b);
+b = imresize(b,[32 32],'bicubic');
+[m1 n1]=size(b);
+figure
+imshow(b)
+title('Mark Image');
+[m n]=size(a);
+i1 = 1;
+j1 = 1;
+p = 1;
+c = a;
+iii = 1;
+jjj = 1;
+a = uint8(a);
+b = uint8(b);
+for ff = 1:8
+    for i = 1:32
+        jjj = 1;
+        for j = j1:j1+n1-1
+            a(i,j) = bitand(a(i,j),uint8(254)); // LSB of base image is set to zero.
+            temp = bitand(b(i,jjj),uint8((2^ff)-1)); //MSB of the mark is extracted.
+            temp = temp/((2^ff)-1);
+            c(i,j) = bitor(a(i,j),uint8(temp));//MSB of mark is inerted into the %LSB of the base
+            jjj = jjj+1;
+        end
+    end
+    j1 = j1+32;
+end
+imshow(c)
+title('Marked Image');
+imwrite(c,'E:\DIP_JAYARAMAN\Chapter12\markimg.jpg');
+\ No newline at end of file