The image of the duck is given as described in Figure 1. You must enter a Matlab code to get the displayed image in Figure 2 by using a convolution function.

[Matt J]

https://www.mathworks.com/matlabcentral/answers/8626-how-do-i-get-help-on-homework-questions-on-matlab-answers

[ahmad dabbah]

listen man i've been three days on this homework and im not finding any source that helps me so if you have an answer say it or pass ,im not here for copying i have written more that 6 codes and does not work and i dont know why

[Matt J]

then show what you have done.

[ahmad dabbah]

clc
clear all
close all

im=im2double(rgb2gray(imread('duck.jpeg'))); 



[m, n] = size(im);
Factor = 4;
f1=zeros(Factor*m, Factor*n);
for k1=1:1.5:(Factor)
    for k2=1:2:(Factor)
        f1 (k1*m,k2*n) = 1;
    end
end
y1=conv2(im,f1);

M1=max(max(y1));
y1=255.*(y1./M1);

imshow(uint8((y1)));
title('Convolution ')

Answer 1

[Walter Roberson]

This demonstration is deliberately not exactly the same as what you are asked to produce.

im = imread('cameraman.tif');

mask = 1;
mask(floor(size(im,1)/2)+1,size(im,2)+1) = 1;
mask(1,size(im,2)*2+1) = 1;
newimg = cast(conv2(mask, im), class(im));
imshow(newimg)