How I would convert the image is im.convert("L") I have had success
using this method for a variety of less common formats, and it handles
all the conversion for you.
EdwardOn Sun, Feb 28, 2010 at 7:50 PM, Karl Garsha <k.e.gar...@gmail.com> wrote: > Greetings, > > I'm reading in a 16-bit monochrome image using PIL on windows and can't seem > to work with the resulting image object. > > I've confirmed the image data is good..I can open and view it with ImageJ > and the dimensions are correct. > > I'm using PIL 1.1.6 as part of the Enthought Python distribution...I'm > stumped. I've appended relevant code I'm trying with my interpreter below: > > I'm hoping perhaps someone can help...I need to take 16-bit monochrome > images (*.tiff in this case) and get them into 8-bit space...thanks in > advance for any insight into what I can do to solve this. > > print im.mode,im.size > I;16 (832, 656) > > print im.getextrema() > None # this doesn't seem right....can PIL 1.1.6 apply this method to 16-bit > unsigned int image objects? > > lut=[] > len(lut) > 0 > for i in range (65536): > lut.append(int(i/256)) > > len(lut) > 65536 > > im3=im.point(lut,'L') > Traceback (most recent call last): > File "<input>", line 1, in <module> > File "C:\Python26\lib\site-packages\PIL\Image.py", line 1109, in point > return self._new(self.im.point(lut, mode)) > ValueError: wrong number of lut entries > > _______________________________________________ > Image-SIG maillist - image-...@python.org > http://mail.python.org/mailman/listinfo/image-sig > > _______________________________________________ Image-SIG maillist - Image-SIG@python.org http://mail.python.org/mailman/listinfo/image-sig
