How to save variables in matlab in most optimal way
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Hello, i have being trying to implement multiple image compression algorithms in matlab (such as RLE) but when encoding an image and trying to save the encoded matrix as a .mat file, it always becomes larger when it should be smaller thoeratically
so i want to know what other ways can you save variables such that it gets the original size it should have
thanks in advace
4 Comments
dpb
on 14 May 2022
Edited: dpb
on 15 May 2022
What's the precison of your raw data? Use the same.
There may be another place where MATLAB is increasing the storage size that you're not expecting -- by default it turns virtually everything numeric into double precision, even image data that may only be 8-bit depth.
We would have to know the details of what you're doing to a much greater depth than you've divulged so far to know anything specific.
Accepted Answer
Walter Roberson
on 15 May 2022
fwrite() with the 'bit1' precision.
For compression calculations purposes you should never be using the size of mat files. mat files have overhead for every variable, and mat files have their own compression built in.
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