32 vs 64 bit, Ubuntu

asked 2013-02-22 13:39:55 -0600

Does OpenCV compile, run correctly, work equally well in both 32 and 64 bit Ubuntu - 12.04? I'm picking an OS for my dedicated visual perception machine, and am leaning towards 64-bit as the newer technology, but ... is there actually any good reason for it?

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answered 2013-02-22 13:55:34 -0600

Mahdi

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updated 2013-02-22 13:57:27 -0600

Ones you want to install OpenCV you make it on your system and you can use it properly on every system. But about the difference of 32-bit and 64-bit systems:

More bits means that data can be processed in larger chunks which also means more accurately.
More bits means our system can point to or address a larger number of locations in physical memory.

In computer vision, computation tasks are Memory and processor intensive. So 64-bit memory may allow us to use larger RAM memory in our computer system.
If your hardware supports 64-bit OS it is good decision to try Ubuntu 64-bit.