[Numpy-discussion] display numpy array as image
Thu Nov 29 17:19:03 CST 2007
Zachary Pincus wrote:
> wxPython looks pretty easy too, as there are facilities for getting
> pixels from a buffer. Does anyone have any experience with these?
> there ways of allowing a numpy array and a wxPython image to point to
> the same memory?
yup. You can build a wxImage from a buffer, and numpy provides a buffer
interface, so they end up with them sharing the same memory, as long as
your numpy array is contiguous 24 rgb.
I've enclosed a sample that generates a wx.Image from a numpy array,
then every time you push the button, the array is altered in-place, and
you can see the image change.
( think you need at least wxPython 2.8 for this to work)
Christopher Barker, Ph.D.
Emergency Response Division
NOAA/NOS/OR&R (206) 526-6959 voice
7600 Sand Point Way NE (206) 526-6329 fax
Seattle, WA 98115 (206) 526-6317 main reception
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