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+//Ex3_2
+// Illustration of Power Law Transformation
+// Version : Scilab 5.4.1
+// Operating System : Window-xp, Window-7
+//Toolbox: Image Processing Design 8.3.1-1
+//Toolbox: SIVP 0.5.3.1-2
+//Reference book name : Digital Image Processing
+//book author: Rafael C. Gonzalez and Richard E. Woods
+
+clc;
+close;
+clear;
+xdel(winsid())//to close all currently open figure(s).
+gray=imread("Ex3_2.tif");
+gray=im2double(gray);
+figure,ShowImage(gray,'Gray Image');
+title('Original Image','color','blue','fontsize',4);
+[M,N]=size(gray);
+c=1;
+gamma=[3 4 5];
+for i=1:length(gamma)
+    b=c.*(gray).^gamma(i); //Gamma transformation
+    b=mat2gray(b);
+    figure,ShowImage(b,'Gray Image');
+    title('Enhance Image after Gamma transformation','color','blue','fontsize',4);
+end
+
+
+
+
+
+