How to convert matrices of different sizes in a for loop into a single column vector?
1 vue (au cours des 30 derniers jours)
Afficher commentaires plus anciens
A = imread('Ish.JPG');
A = im2single(squeeze(mean(A,3)));
A = im2double(A);
[pyrRef,pind] = buildLpyr(A,'auto');
nLevels = 7;
kernelx = [0.0, 0.0, 0.0; 0.5, 0.0, -0.5; 0.0, 0.0, 0.0];
kernely = [0.0, 0.5, 0.0; 0.0, 0.0, 0.0; 0.0, -0.5, 0.0];
for k = 1:nLevels
subband = pyrBand(pyrRef, pind, k);
rx(k) = conv2(subband(k),kernelx);
ry(k) = conv2(subband(k),kernely);
amp = sqrt(subband.^2 + rx(k).^2 + ry(k).^2);
Phase = acos(subband./amp);
end
Here, the value of "Phase" is a matrix with varying dimension at each iteration of 'k'. How do I save all the values in these k matrices into a single coloumn vector?
2 commentaires
Jiri Hajek
le 5 Déc 2022
Modifié(e) : Jiri Hajek
le 5 Déc 2022
Hi, you can make column vector from a matrix by using linear indexing
columnVector = Array(:);
And if by "save all" you mean to concatenate these vectors, then its possible simply by using brackets:
concatenatedVectors = [firstVector; secondVector];
Réponses (3)
Jan
le 5 Déc 2022
...
PhaseC = cell(1, nLevels);
for k = 1:nLevels
...
PhaseC{k} = acos(subband./amp);
end
Phase = cat(2, PhaseC{:}); % Maybe cat(1, ...
0 commentaires
MFK
le 16 Jan 2023
for k = 1:nLevels
...
Phase = acos(subband./amp);
re_shaped_Phas{k,1}=reshape(Phase,1,[]);
end
0 commentaires
Bruno Luong
le 16 Jan 2023
...
PhaseC = cell(1, nLevels);
for k = 1:nLevels
...
Phase = acos(subband./amp);
PhaseC{k} = Phase(:);
end
Phase = cat(1, PhaseC{:});
0 commentaires
Voir également
Catégories
En savoir plus sur Arduino Hardware dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!