How to make a video from two arrays?

Question

TheBeginner 2013-6-5

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/78048-how-to-make-a-video-from-two-arrays

Hi,

I have two arrays, one "image" 200x200xN (N number of images) and a curve N x [x y], ie N times a point.

I want to make a video which is the sum of the two arrays.

I already know how to make a video using avifile and by displaying the picture on a figure. I have used this method for this particular case, by displaying the two arrays on the same figure and using "hold on"," hold off".

I would like to know if I could do this without having to display the arrays on a figure.

Here's my code :

aviobj = avifile('example.avi','compression','None');
fig = figure;
      for i=1:size(image,3)    %image = 200x200xN arrays
          imagesc(image(:,:,i));
           hold on;       
           %vect is a N*2 arrays
           plot(vect(:,1),vect(:,2),'r*','LineStyle','none'), axis ij;
           hold off
          f = getframe(fig);
          aviobj = addframe(aviobj,f);    
      end
aviobj = close(aviobj);