[Image-SIG] Re: buffer is not large enough

[Manik Bali]

Hi Fredrik
They work like...
>>> import Image
>>> im = Image.open("glc2000_beta3.pgm")
>>> im.size
(40320, 14673)
>>> im.mode
'L'
>>> im.tile
[('raw', (0, 0, 40320, 14673), 18L, ('L', 0, 1))]
>>> 

and then when i give anyother command like histogram() etc it gives buffer
not large enough
Rgds
Manik

On Thu, 15 Apr 2004, Fredrik Lundh wrote:

> Manik Bali wrote:
> 
> > I am trying to make a histogram() for my pgm image( which is basically a
> > four line header information followed by binary data )
> > And it gives the following error.
> > >>> import Image
> > >>> im=Image.open("glc2000_beta3.pgm")
> > >>> im.histogram()
> > Traceback (most recent call last):
>    ...
> > ValueError: buffer is not large enough
> >
> > The size of pgm file is 591614803.
> > Is there a way out..
> 
> what does this print:
> 
>     >>> im = Image.open(filename)
>     >>> im.size
>     >>> im.mode
>     >>> im.tile
> 
> does this work?
> 
>     >>> im = Image.open(filename)
>     >>> im.filename = None # disable mapping
>     >>> im.load()
>     >>> im.histogram()
> 
> </F>
> 
> 
> 
> 
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