Numeric and PIL: 1D array from 2D-tuple

[Leon Widdershoven]

Hi,

you probably wish to use something like:
text = Image.tostring()
arr  = Numeric.fromstring( text )

with a possible Numeric.reshape() if you wish to operate
on something else than a 1D array.

Regards,
Leon

Markus von Ehr wrote:
> 
> Hi,
> 
> I have a 2D tuple (an Image) and want to display it using ImageTk
> in PIL.
> Numeric.choose throws me an error:
> 
> Traceback (innermost last):
>   File "<pyshell#14>", line 1, in ?
>     res = Numeric.choose(MyImage, mask)
> ValueError: invalid entry in choice array
> 
> Anybody knows how to get a 1D-array to construct the
> ImageTk.PhotoImage?
> 
> Thanks for any comments,
> 
> Markus
> 
> code:
> 
> MyImage = self.cam.Image # MyImage is a 2D-tuple
> 
> mask = [1 for i in MyImage]
> 
> MyImage = Numeric.choose(MyImage, mask)
> 
> new_image = MyImage.tostring()
> self.im.fromstring(new_image, "raw", "RGBX", 0, -1)
> 
> self.photoimage = ImageTk.PhotoImage(self.im)