%Original, Resized, Grey-Scaled and black & white image
clc;clear;close all;
im=imread('peppers.png');
subplot(2,2,1);imshow(im);
title('Original Image');
imr=imresize(im,0.3);
subplot(2,2,2);imshow(imr);
title('Resize Image');
img=rgb2gray(im);
subplot(2,2,3);imshow(img);
title('GreyScale Image');
imb=imbinarize(img);
subplot(2,2,4);imshow(imb);
title('Black and White Image');

%Original, Grey-Scaled, Horizontal edge and Vertical edge image
clc;clear;close all;
im=imread('peppers.png');
subplot(2,2,1);imshow(im);
title('Original Image');
img=rgb2gray(im);
subplot(2,2,2);imshow(img);
title('GreyScale Image');
H=[1 1 1;0 0 0;-1 -1 -1];
V=[1,0,-1;1 0 -1;1 0 -1];
imh=conv2(img,H);
subplot(2,2,3);imshow(imh);
title('Horizontal edges');
imv=conv2(img,V);
subplot(2,2,4);imshow(imv);
title('Verticle edges');