out of memory error!

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lilish
lilish on 10 Dec 2014
Commented: lilish on 11 Dec 2014
hi, I'm running a code in matlab to read data from a file which has a 512*512*512 volume by fread command. when i run it for the 512*512 amount of the file it works, but when I want to read the whole data to be able to image them it doesn't work and display 'out of memory error'. so I really need to have all data together to image them. do you think what this error happen and how i can fix it. my laptop'RAM is 3GB and my system is 32-bit. i'm looking to hearing from you. Thanks

Accepted Answer

Ryan
Ryan on 10 Dec 2014
You could use a memmapfile. I'm not entirely sure how it works, but a memory map does not actually load the data into memory. That way you can process pieces parts, if that's what you want to do. Check out
doc memmapfile

More Answers (2)

Sean de Wolski
Sean de Wolski on 10 Dec 2014
Either buy a bigger computer with 64 bit OS and MATLAB, or downsample your data.

Matt J
Matt J on 10 Dec 2014
Maybe you can read the image in as uint8, or some other type smaller than double,
A = fread(fileID, 512^3, 'double=>uint8');

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