Tugas Konverter Pengolahan Citra

clear all;
l=imread('Sunset.jpg');

%mengkonvert dari RGB ke Gray
l1=rgb2gray(l);
l2=fft(double(l1));
l2_1=fft(double(l));

% menampilkan figure 1
figure(1)
clf(subplot(3,2,1),imshow(l));
title('Gambar Asli');
hold on;
subplot(3,2,2),imshow(l1);
title('Gambar Graye ');

% membuat filter matrix 3x3 di window)
h=fspecial('prewitt');
l_pre=uint8(round(filter2(h,l1)));
l_pre_1=fft(double(l_pre));
subplot(3,2,3),imshow(l_pre)
title('Prewitt filtered image');

% membuat filter matrix(3x3 window)
h=fspecial('sobel');
l_sobel=uint8(round(filter2(h,l1)));
l_sobel_1=fft(double(l_sobel));
subplot(3,2,4),imshow(l_sobel)
title('Sobel filtered');

h=fspecial('log',5);
l_log=uint8(round(filter2(h,l1)));
l_log_1=fft(double(l_log));
subplot(3,2,5),imshow(l_log)
title('Gambar 5x5 Laplacian Guassian Filter ');

h=fspecial('log',3);
l_log3=uint8(round(filter2(h,l1)));
l_log3_1=fft(double(l_log3));
subplot(3,2,6),imshow(l_log3)
title('Gambar 3x3 Laplacian of Guassian Filter');

%menampilkan figure 2
figure(2)
subplot(3,2,1),imshow(l2);
subplot(3,2,2),imshow(l2);
subplot(3,2,3),imshow(l_pre_1);
subplot(3,2,4),imshow(l_sobel_1);
subplot(3,2,5),imshow(l_log_1);
subplot(3,2,6),imshow(l_log3_1);