I want a MATLAB code that will resize a given image into 50x50 image

2 vues (au cours des 30 derniers jours)
Niraj Rajput
Niraj Rajput le 2 Fév 2013
I want a MATLAB code that will resize a given image into 50x50 image

Réponses (4)

maha lakshmi
maha lakshmi le 2 Fév 2013
Modifié(e) : Walter Roberson le 22 Oct 2017
>> x1 =imread('pears.jpeg');
>> x =imresize(x1,[50 50]); %see your answer in workspace

Youssef  Khmou
Youssef Khmou le 2 Fév 2013
Use "reshape" function, Warn : the number of elements must not change means for your initial image I of size(n,p), the number p*n=2500 :
Resized=reshape(I,50,50);
if n*p!=2500, try to truncate elements ,
Is that what you mean?

ali ebrahimi
ali ebrahimi le 1 Mar 2013
warning!!!!!!1 Undefined function 'imresize' for input arguments of type 'uint8'.
  1 commentaire
Walter Roberson
Walter Roberson le 1 Mar 2013
imresize() is part of the Image Processing Toolkit. Do you have access to that? It is optional (extra cost) for the Academic and Professional version, but is included in the Student Version, but might not be installed by default.

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Youssef  Khmou
Youssef Khmou le 1 Mar 2013
Modifié(e) : Youssef Khmou le 1 Mar 2013
hi, did you try my first answer using reshape ?
You can try other methods , such as down_sampling like if you have an Image I of size 400x400 you can downsample it :" I=I(1:8:end,1:8:end)"
% Given your image I of size(m,n)
m=250;
n=250;
I=rand(m,n);
mm=floor(m/50);
nn=floor(n/50);
J=I;
J=J(1:mm:end,1:nn:end);
% Now you new image J is of size 50x50
  2 commentaires
Walter Roberson
Walter Roberson le 1 Mar 2013
Note that the original poster of the question has not responded.
Youssef  Khmou
Youssef Khmou le 1 Mar 2013
Modifié(e) : Youssef Khmou le 1 Mar 2013
hi, i thought that the poster said he does not have imresize function but its was another user .

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