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From: hajoura &lt;fradi.hajer@gmail.com&gt;
Newsgroups: comp.soft-sys.matlab
Subject: Re: delaunay
Date: Fri, 24 Apr 2009 01:58:43 -0700 (PDT)
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ok,
i'm trying to use triangulation of delaunay to achieve super
resolution.
i read article &quot;High Resolution Image Formation From Low Resolution
Frames Using Delaunay Triangulation&quot;.after that, i find  the
implementation of this method in
http://www.tsi.enst.fr/tsi/enseignement/ressources/mti/delaunay/delaunay_imprimable.pdf,
in this paper, they start with high resolution image , than they
undersampled this image, they obtain 5 low resoltion images.
lt = lr1 + lr2 + lr3 + lr4 + lr5; It contain the  information from the
5 images
after that, they use  the function delaunay;
i didn't understand also why they use meshgrid
For me, i want to use only 2 undersampled image
my code:
img=imread('----------');
i1=1;
j1=1;
i2=3;
j2=3;
M=M/4
N=N/4
%undersampling the image
im1(i1:1:M,j1:1:N)=img(i1:4:4*M,j1:4:4*N);
im2(i1:1:M,j1:1:N)=img(i2:4:4*M,j2:4:4*N);

image=im1+im2;
image=image(:)';
i1=1;
j1=1;
[X_1,Y_1]=meshgrid(i1:4:4*M, j1:4:4*N);
X1=X_1(:)';
Y1=Y_1(:)';
TRID=delaunay3(X1, Y1, image, {'QJ'});

So, two questions 1)why we use meshgrid in this case?
                           2)why the function delaunay3 work ?
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