I have a 4D array V, with the size [144 144 12 25]. In fact, it is a 4D medical image with 12 stacked slices in 25 different time. I want to apply a mask, named M, to each image in the array in a vectorized way. M is a 144x144 array containing logical values. Could someone help me how to do it?
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data = rand(144,144,12,25); your_mask = rand(144,144) > 0.5;
Assuming you want to multiply by the mask:
your_result = bsxfun(@times,data,mask);
Note that you can do operations other than multiplication. Please have a look at