[Numpy-discussion] unsigned short support in NumPy

Perry Greenfield perry at stsci.edu
Mon Apr 29 13:31:14 CDT 2002


> Sebastian Haase writes:

> 
> Hi all,
> I'm _very_ new to NumPy.
> I was interested in using it for our project, where we acquire 
> data from a 
> CCD camera.
> 
> The Problem:  Each pixel in the image is a 16 bit gray value.
>              What I read in the documentation - there is only 8 
> bit (unsigned 
> integer) support in numpy (or should I say numericarray)
> 
> Are there plans to add a "unsigned short" (16 bit) support .
> How much effort would that be.
> 
There is a reimplemenation of Numeric that we are doing that does
support unsigned ints (Unsigned Int8, Unsigned Int16 for now).
The project is not mature, but a lot of basic cabability exists
now. You'll have to look it over to judge if it is usable 
for you now. The new version is called numarray
( http://stsdas.stsci.edu/numarray )

(btw, we acquire data from CCD cameras as well ;-) 

Perry




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