Effacer les filtres
Effacer les filtres

What code can I use to get a signal from the image?

17 vues (au cours des 30 derniers jours)
pantea sam
pantea sam le 27 Déc 2022
Can I use another code besides this one?
YourSignal = original(:);
plot(YourSignal);

Réponses (1)

Hiro Yoshino
Hiro Yoshino le 27 Déc 2022
Taks this as an example.
im = imread("coins.png");
imshow(im);
if you want to convert the matrix into either row or column vector:
im_row = reshape(im,1,[])
im_row = 1×73800
49 47 48 48 48 48 48 51 50 51 50 47 49 50 50 50 49 49 49 51 50 51 51 49 49 50 51 50 51 50
im_col = reshape(im,[],1)
im_col = 73800×1
49 47 48 48 48 48 48 51 50 51
if you just swap the row and column (n x m >> m x n)
im_reshape = reshape(im,size(im,2),size(im,1));
imshow(im_reshape);
Note that the pixels are numbered from top to bottom and from left to right.

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