Do all functions return float64 dtype?

[Juan Nunez-Iglesias]

Hi Simone,

Sorry for the long gap in response time!

Most functions indeed work with float64, and this is not easy to fix,
unfortunately. For some functions, you can provide an `out=` argument where
you pre-allocate an array with whatever type you want.

Depending on your workflow, we might be able to help you avoid float64. In
many cases, we would welcome contributions to make specific functions more
flexible about their return type/inner workings.

Juan.

On Tue, Jun 7, 2016 at 7:11 AM, Simone Codeluppi <simone at codeluppi.org>
wrote:

> Hi
> I was just wondering if the majority of the skimage functions return
> float64 as default dtype. I am processing a big dataset and saving the data
> as float64 increase the size quite a bit (compared to float32). Is there
> also an additional computational cost in processing float64 instead of
> float32?  Beside the precision level is there any advantage in using
> float64?
> Thanks a lot!
>
> Simone
>
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