[Commons-l] Allow Digital Negative (DNG) RAW format on Commons? (and increase filesize limit)

Matthew Brown morven at gmail.com
Fri Nov 23 17:38:43 UTC 2007


On Nov 23, 2007 2:45 AM, Jastrow <jastrow at pip-pip.org> wrote:
> Le 11/22/07 1:00 AM, Brianna Laugher a écrit :
> >
> > As someone else said, providing the RAW format allows a reuser to
> > optimise it for various print qualities, rather than optimising for
> > screen (and probably smaller file size at that).
>
> This is a feature of the RAW format. As far as I know, it doesn't have
> anything to do with high resolution.

I suspect someone said 'resolution' when what they actually meant was
that RAW contains every bit of original data available without any
losses due to processing.  'Resolution' could refer to several
different properties of an image.  I suspect what was being directly
meant was 10- or 12-bit color values, rather than 8-bit in most
processed formats.

As someone mentioned upthread, TIFF is a problematic format to support
since it is just a container for many different data formats.

-Matt



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