PIL resize with aspect ratio?

Greetings,

I'm new to PIL, and am wondering if the following is
possible.

I want to resize an image by only specifying the width, but
not the
height.  The height should be expanded or contracted
automatically to
fit the width value while maintaining the aspect ratio of
the image.

Second, I want to be able to specify the JPEG compression
level.

If you are familiar with ImageMagick, these would be
accomplished
using the following for example:

% mogrify -quality 95 -resize 500x big.jpg

I can't figure out whether these things are possible from
the PIL
documentation or not.  Any ideas?

Thanks.
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On Jan 5, 2006, at 11:49, Count László de Almásy wrote:

> Greetings,
>
> I'm new to PIL, and am wondering if the following is
possible.
>
> I want to resize an image by only specifying the width,
but not the
> height.  The height should be expanded or contracted
automatically to
> fit the width value while maintaining the aspect ratio
of the image.
>
> Second, I want to be able to specify the JPEG
compression level.
>
> If you are familiar with ImageMagick, these would be
accomplished
> using the following for example:
>
> % mogrify -quality 95 -resize 500x big.jpg
>
> I can't figure out whether these things are possible
from the PIL
> documentation or not.  Any ideas?

i.thumbnail ( (128,128), Image.ANTIALIAS )

this will create a thumbnail that is no more than 128x128,
but will 
keep the original geometry.


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