Hi there,

I am switching to using PyTables for some image-processing work to  
store some intermediate data, namely binary masks, in a structured/ 
hierarchical way.

I've got about 182MB worth of binary PNG files, and when I store them  
as CArrays, even with zlib or bzip2 complevel=9, they balloon to  
 >400MB. This isn't a huge deal (disk space is cheap and I can always  
just compress the h5 file afterward if I need to transfer it  
somewhere, that seems to almost cut the file size in half) but does  
anyone have any tips for storing large arrays of BoolAtoms efficiently?

Thanks,

David

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