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From: <HIDDEN>
Newsgroups: comp.soft-sys.matlab
Subject: Re: combine image parts
Date: Sun, 26 Jul 2009 16:58:01 +0000 (UTC)
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"us " <us@neurol.unizh.ch> wrote in message <h4hr5a$7vl$1@fred.mathworks.com>...
> "Brian J."
> > What must I do?
> 
> one of the solutions is outlined below
> - this requires the image proc tbx(!)...
> - use MONTAGE on delimiter enhanced subimages...
> 
>      n=64;
>      m=16;
>      img=reshape(1:n*n,[n,n]);     % <- the big image...
>      img=img+5000*rand(size(img));     % <- ...with a bit of noise...
>      ix=1:m;     % <- the index template...
>      ni=n/m;     % <- add error check: must be INT...
>      simg=zeros(m+1,m+1,1,ni*ni);
>      del=-100*ones(1,m);
>      k=0;
> % create 4D subimages with dels...
> for  i=1:ni
>      xv=(i-1)*m+ix;
> for  j=1:ni
>      k=k+1;
>      yv=(j-1)*m+ix;
> % - add del...
>      simg(:,:,1,k)=[img(xv,yv),del.';del,-100];
> end
> end
> % - adjust colormap...
>      simg=255*simg./max(img(:));
>      simg(simg<0)=-1;
>      cmap=[
>           [1,1,0]     % <- del
>           gray(255)
>      ];
> % - set IMSHOW prop...
>      imod=iptgetpref('ImshowInitialMagnification');
>      iptsetpref('ImshowInitialMagnification','fit');
>      montage(simg,cmap,'size',[ni,ni]);
>      iptsetpref('ImshowInitialMagnification',imod);
> 
> us

Dear "us", thanks a lot, but when I use  img=phantom(256); then I could not see the result :((