matlab image processing
2 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
How to merge the r,g and b components to get a single rgb image in matlab???
0 commentaires
Réponse acceptée
Jan
le 24 Mar 2012
r = rand(20, 30);
g = rand(20, 30);
b = rand(20, 30);
rgb = cat(3, r, g, b);
2 commentaires
Plus de réponses (2)
Sivakumaran Chandrasekaran
le 24 Mar 2012
hi jan, r = rand(20, 30); g = rand(20, 30); b = rand(20, 30); rgb = [r, g, b]; imshow(rgb)
thats my code.. could you explain me whats the different between your code and mine. I am getting gray image as output. But,you are getting colored one. could you explain this technically. why i am not getting color image even though i concatenated those three basic colors.
Regards, Siva
2 commentaires
Bjorn Gustavsson
le 24 Mar 2012
If you get pure gray it might be because your R G and B images are identical or close to identical?
Jan
le 24 Mar 2012
[r,g,b] is equivalent to cat(2, r, g, b): It concatenates along the 2nd dimension. Try it with smaller values to keep the overview:
r=[1,2;3,4]; g=r+5; b=g+5;
disp([r,g,b])
disp(cat(3, r, g, b))
The concatenation along the 2nd dimension creates a 2D matrix of type double, which is displayed as grey scale image.
Voir également
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!