Hi, may i know how to create a loop in this code for image subtraction? X is the reference image and variable in Y , I have 10 images in the folder
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clc
clear
close all
warning off;
x=imread('reference.png');
y=imread('3.png');
Image=x-y;
imshow(image);
title('difference of the image compare to reference');
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Respuestas (2)
Rik
el 23 de En. de 2022
Use a for loop.
You can use the sprintf function to generate the file name based on the iteration number, and you can use subplot to create a grid of axes.
Note that you should probably cast your images to double prior to the subtraction, as images tend to be uint8 and therefore don't support negative numbers.
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yanqi liu
el 24 de En. de 2022
Editada: yanqi liu
el 25 de En. de 2022
% X is the reference image and variable in Y , I have 10 images in the folder
x=im2double(imread('reference.png'));
for i = 1 : 10
y = im2double(imread([ num2str(i) '.png'] ));
Image=x-y;
figure(i);
imshow(Image, []);
title('difference of the image compare to reference');
end
4 comentarios
Rik
el 24 de En. de 2022
I meant the clc; clear all; close all;.
I would not blindly repeat code the OP posted. If they really need to turn off all warnings, they will be able to put that line in their code again. Ritual inclusion of that code reinforces bad habits. People should be using functions to keep their workspace clean, use handles when dealing with graphics objects, and not forget semicolons. If you do those 3 things, clear (and clear all especially), close all, and clc are almost never required.
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