MATLAB Answers


storing a variable

Asked by James
on 6 Aug 2011


At the moment I am storing 59 images that i have read into matlab in a variable called 'mymovie'. Each image is represented by an array 240x352 double.

mymovie is a 1x59 struct array with fields: cdata

Is this the best way to store an image? I have confused myself slightly as to the different ways of storing data in a variable. Please help.



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2 Answers

Answer by Walter Roberson
on 6 Aug 2011

There is no one "best" way to store a series of images. The "best" way depends upon the kind of processing you need to do and upon how quickly the stored images change.


Answer by Image Analyst
on 6 Aug 2011

It's likely that the images could be stored as uint8 at 1/8th the space. Now after you start to do something to the images it may well happen that you have double images during your processing. To save memory, try to analyze just one image at a time from the movie, or a few at most, or you may well run out of memory. You won't have enough memory to store a uint8 original image and a handful of double intermediate images for an entire movie of several thousand frames, so that's why you should just process one or a few frames at a time.


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