How to get indexed pixels from set of images?

A set of images a(x,y,n); n images, each image has a size of (x * y); A known index map: imind(x,y), size of the image with each element value from 1 to n;

How to obtain the image that each pixel is from different image? For example: imind(1,1)=2, then take final_im(1,1)=a(1,1,2); imind(21,33)=6, then take final_im(21,33)=a(21,33,6); etc.

It can be done with a loop:

    for nx=1:x
       for ny=1:y
          final_im(nx,ny)=a(nx,ny,imind(nx,ny));
       end
    end

But, is there an elegant way?

Thanks.

Answer 1

[KSSV]

You can reduce one loop shown below:

      for nx=1:x
            final_im(nx,1:ny)=a(nx,1:ny,imind(nx,1:ny));
      end

[Image Analyst]

I wouldn't encourage John's bad habits of calling vertical row "x" and the horizontal column "y" - this is the opposite the way the rest of the world does it. Images take indexes y,x not x,y.

Answer 2

[John]

Will this single loop way work? And a loop-less way would be more "elegant".