processing a large image in matlab

2011 5 4
2 个回答
2 次查看（30 天）

0 个投票

hi,
i am using this script to open ENVI images: http://www.mathworks.com/matlabcentral/fileexchange/4918-envi-to-matlab/content/freadenvi.m
however, my computer does not have sufficient memory to open the entire image, so i get the error: out of memory.
is there a way to solve this problem? for instance, can the script be somehow modified to read in the image segment by segment so as not to overload the memory?
i am new to matlab, thanks for any help.

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回答（2 个）

Andreas Goser
Andreas Goser 2011-5-4

0 个投票

The code looks pretty straight forward to me. Maybe not speed optimized, but I see no obvious memory waste. One would need to run it with a smaller ENVI image to identify memory waster. Did you already contact the author? He might be interested to collaborate.
You may need a 64 bit MATLAB on a 64 Bit environment.
bob bob
bob bob 2011-5-4

0 个投票

yes, i think the issue here is the size of my ENVI images. how can i modify the script to make it open the image, say, 10MB at a time?
no, i have not contacted the author.

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bob bob
bob bob
2011-5-4

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