Torsten Bronger wrote:
> Hallöchen!
>
> I have to extract the dimensions of many bitmap files. An old Bash
> script did it with ImageMagick's "display -ping ...". "-ping" means
> that it extracts the image dimensions efficiently. I suspect it
> simply doesn't read the image itself.
>
> Now the Bash script has been transformed into Python+PIL. Is there
> a way to get the dimensions equally efficient here, or does the PIL
> even do this optimisation implicitly since I never access the image
> bitmap itself?
>
>>> import Image
>>> i = Image.open("Hello.png")
>>> i.size
(142, 23)
>>>
The image data isn't read until an operation requires it, so this is an
efficient way to get its size.
regards
Steve
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