How to intersect 6 binary images?

Given: I have 6 binary image:

Want: I want to intersect those 6 images to get the objects which will appear in all images.

Currently done:

I can do it manually, such as:

AllImages = cont{1} & cont{2} & cont{3} & cont{4} & cont{5} & cont{6};figure; imshow(inBothImages);

Needed: I'm wondering how to make a loop for it?

Such as:

if length(num)>2
   for m = 2:length(num(num>0))
       AllImages  = cont{num(1)} & cont{num(m)} 
   end
end

But it did't work.

[ACKNOWLEDGMENTS]

Thank you Guillaume!

[MATLAB version]

R2014a

Answer 1

[Guillaume]

The simplest way is to concatenate all your images in a higher dimension and simply use all in that higher dimension.

If your images are 2d:

AllImages = all(cat(3, cont{:}), 3); %that's it all done.

or for a generic cell array of Nd images:

higherdim = ndims(cont{1}) + 1;
AllImages = all(cat(higherdim, cont{:}), higherdim);

[Ivan Shorokhov]

Thank you!