Would it be appropriate for your application to use a chunked dataset such that each chunk is sized to e.g. a power of 2 ?
Werner
On Thu, 19 Sep 2013 09:36:25 -0500, Jason Newton <[email protected]> wrote:
Hi,
Resurrecting this thread:
http://mail.lists.hdfgroup.org/pipermail/hdf-forum_lists.hdfgroup.org/2012-November/006206.html
Although the original author mentions bits, he means bytes. It's a regular thing that images have a row of bytes referred to as a line to ensure alignment of each pixel row. This usually is padded with up to 15 bytes. As the original author indicates numerous libraries do this. From image IO (libtiff: scanline) to image processing libraries like opencv/ipp (step).
However HDF only likes packed arrays and doesn't really deal with this notion of storage. So how can we make it deal with it not in terms of the data space but in terms of something some detail to this particular memory buffer? Copying images to packed format is an ugly and non-optimal solution; a bunch of write calls isn't great either.
Regards,-Jason
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___________________________________________________________________________
Dr. Werner Benger Visualization Research
Center for Computation & Technology at Louisiana State University (CCT/LSU)
2019 Digital Media Center, Baton Rouge, Louisiana 70803
Tel.: +1 225 578 4809 Fax.: +1 225 578-5362
Dr. Werner Benger Visualization Research
Center for Computation & Technology at Louisiana State University (CCT/LSU)
2019 Digital Media Center, Baton Rouge, Louisiana 70803
Tel.: +1 225 578 4809 Fax.: +1 225 578-5362
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