A PIL Question

[Ray]

Hello,

I'm using latest PIL version with Python 2.4.1. (for solving a level in
Python Challenge actually...). Anyway, I'm trying to draw a picture. My
question is, why is it that putdata() won't work? Even this won't run:

import Image

im = Image.open("som ething.jpg")
seq = im.getdata()

image = Image.Image()
image.putdata(s eq)

image.show()

I always get:

Traceback (most recent call last):
File "Script1.py ", line 31, in ?
image.putdata(s eq)
File "D:\Development \Python24\Lib\s ite-packages\PIL\Im age.py", line
1120, in putdata
self.im.putdata (data, scale, offset)
AttributeError: 'NoneType' object has no attribute 'putdata'

Anybody has any idea why this is the case?

Thanks,
Ray

[Max Erickson]

Re: A PIL Question

"Ray" <ray_usenet@yah oo.com> wrote in
news:1124040878 .557813.311900@ g47g2000cwa.goo glegroups.com:
[color=blue]
>
> image = Image.Image()[/color]
[color=blue]
>
> Anybody has any idea why this is the case?
>[/color]

Image.Image() isn't the way to get a new image object in PIL. Try
Image.new(), which needs at least mode and size arguments. You can get
those from your original image...
[color=blue][color=green][color=darkred]
>>> from PIL import Image[/color][/color][/color]
(skip me loading an image into im)[color=blue][color=green][color=darkred]
>>> im[/color][/color][/color]
<PIL.JpegImageP lugin.JpegImage File instance at 0x00A8A170>[color=blue][color=green][color=darkred]
>>> im.mode[/color][/color][/color]
'RGB'[color=blue][color=green][color=darkred]
>>> im.size[/color][/color][/color]
(510, 800)[color=blue][color=green][color=darkred]
>>> im2=Image.new(i m.mode,im.size)
>>> seq=im.getdata( )
>>> im2.putdata(seq )[/color][/color][/color]

Then do im2.show() and everything should be ok.


max

[Terry Hancock]

Re: A PIL Question

On Sunday 14 August 2005 12:34 pm, Ray wrote:[color=blue]
> import Image
>
> im = Image.open("som ething.jpg")
> seq = im.getdata()
>
> image = Image.Image()
> image.putdata(s eq)
>
> image.show()
>
> I always get:
>
> Traceback (most recent call last):
> File "Script1.py ", line 31, in ?
> image.putdata(s eq)
> File "D:\Development \Python24\Lib\s ite-packages\PIL\Im age.py", line
> 1120, in putdata
> self.im.putdata (data, scale, offset)
> AttributeError: 'NoneType' object has no attribute 'putdata'
>
> Anybody has any idea why this is the case?[/color]

Well, obviously you didn't get an image back from Image.Image().
In fact, I suspect you would've at least have to have given it a size
or something. It clearly returned None, and you're trying to call
a method that None doesn't have, like it says.

Definitely check the PIL manual for what Image.Image() is
supposed to return, and what it requires to have valid output.

--
Terry Hancock ( hancock at anansispacework s.com )
Anansi Spaceworks http://www.anansispaceworks.com