Re: [Numpy-discussion] PIL and NumPy

2013-07-15 Thread Stéfan van der Walt
Dear Brady On Fri, 12 Jul 2013 22:00:08 -0500, Brady McCary wrote: > > I want to load images with PIL and then operate on them with NumPy. > According to the PIL and NumPy documentation, I would expect the > following to work, but it is not. Reading images as PIL is a little bit trickier than one

Re: [Numpy-discussion] PIL and NumPy

2013-07-15 Thread Chris Barker - NOAA Federal
On Jul 12, 2013, at 8:51 PM, Brady McCary wrote: > > something to do with an alpha channel being present. I'd check and see how PIL is storing the alpha channel. If it's RGBA, then I'd expect it to work. But I'd PIL is storing the alpha channel as a separate band, then I'm not surprised you hav

Re: [Numpy-discussion] PIL and NumPy

2013-07-12 Thread Brady McCary
NumPy Folks, Sorry for the self-reply, but I have determined that this may have something to do with an alpha channel being present. When I remove the alpha channel, things appear to work as I expect. Any discussion on the matter? Brady On Fri, Jul 12, 2013 at 10:00 PM, Brady McCary wrote: > Nu

[Numpy-discussion] PIL and NumPy

2013-07-12 Thread Brady McCary
NumPy Folks, I want to load images with PIL and then operate on them with NumPy. According to the PIL and NumPy documentation, I would expect the following to work, but it is not. Python 2.7.4 (default, Apr 19 2013, 18:28:01) [GCC 4.7.3] on linux2 Type "help", "copyright", "credits" or "license