The meaning of code on this program
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Hi.
That is a code which produce a difference picture on Matlab.
That is my professor code, but i cannot fully understand.
The knowledge point is image on Matlab.
% read an image: imread()
% show an image: imshow()
% eg.
clear, close all
I = imread('pout.tif'); % read
for i = 1:size(I,1)
for j = 1:size(I,2)
if (rem(i,2)==0 && rem(j,2)==0)
I(i,j) = 0;
end
end
end
% show a image
imshow(I);
What is the meaning of i = 1:size(I,1) and what is the purpose of rem(i,2) == 0 && rem(j,2) == 0;
Thank you all.
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Accepted Answer
KSSV
on 26 Mar 2022
clear, close all
I = imread('pout.tif'); % this is to read the image pout.tif
for i = 1:size(I,1) % this is loop from 1 to number of rows of the image (REad abou the fnction size)
for j = 1:size(I,2) % this is loop from 1 to number of columns of the image. So basically the loops cover each pixel of the image i.e. each and every element of matrix
if (rem(i,2)==0 && rem(j,2)==0) % if the row, collumn is even
I(i,j) = 0; % repalce the pixel by 0
end
end
end
You can try yourself everything instead of asking a question. Read the documentation of rem.
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