My bottleneck right now is JPEG 2000. I'm getting lots of LOC images in
this format, and need to manipulate them with PIL.
Bill
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Thanks Kevin,
I have tried the code, the Image.new() function just bails due to
MemoryError.
I've now enabled some extra swap, giving me about 20GB of free swap+mem.
Still python bails on Image.new(). Looking at memory usage it seems
python does not even try to allocate, just bails before any me
As an emergency solution I think VIPS has support for large images. It
has python bindings, but they are not so nice and well documented as
PIL.
On Mon, Jun 22, 2009 at 6:52 PM, B. Bogart wrote:
> Hello all,
>
> I want to create a very large RGBA image (96000x72000 pixels).
>
> I have 4GB of RAM.
Hello,
to process a ~ 25GB (uncompressed image data) you are afaik out of luck
with PIL.
Only chance would be to use a fairly recent 64 bit OS with 64 bit python
binaries (some custom patches /might/ be needed though) and give it a
hefty amount of swapspace (at least eight times main memory) t
> -Original Message-
> From: fredrik.lu...@gmail.com [mailto:fredrik.lu...@gmail.com] On
> Behalf Of Fredrik Lundh
> Sent: den 22 juni 2009 16:33
>
> Looks like PIL doesn't do line alignment correctly for mode L and P
> images (at least). Hmm.
>
> Can you check if it works correctly if t
Off the top of my head I would divide the image into horizontal bands
and only work on one part at a time, writing the rest to disk. At the
final join I would write a custom file writter that wrote to some very
simple file format such as .tga or .bmp and could handle just
appending the new pixel da
