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.

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ahmad dabbah 2022-12-17

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https://ww2.mathworks.cn/matlabcentral/answers/1880392-the-image-of-the-duck-is-given-as-described-in-figure-1-you-must-enter-a-matlab-code-to-get-the-dis

回答： Walter Roberson 2022-12-17

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Matt J 2022-12-17

then show what you have done.

ahmad dabbah 2022-12-17

在 MATLAB Online 中打开

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 ')

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Walter Roberson 2022-12-17

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1880392-the-image-of-the-duck-is-given-as-described-in-figure-1-you-must-enter-a-matlab-code-to-get-the-dis#answer_1130337

在 MATLAB Online 中打开

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)

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