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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
ahmad dabbah 2022-12-17
回答： Walter Roberson 2022-12-17
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ahmad dabbah
ahmad dabbah 2022-12-17
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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回答（1 个）

Walter Roberson
Walter Roberson 2022-12-17
Ran in:
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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