On Sat, Sep 12, 2009 at 6:52 PM, Liam Wyatt <liamwyatt(a)gmail.com> wrote:
On Sat, Sep 12, 2009 at 8:41 AM, Gerard Meijssen
<gerard.meijssen(a)gmail.com>
wrote:
Yes, 100MB is not big even for single paged documents. The biggest file we
want to upload but cannot is over 600 Mb. Obviously they are a minority.
Thanks,
GerardM
Yes, 600Mb files will indeed be the minority of TIFF files - for a few years
yet at least :-) And, even then, TIFF files will be in the minority relative
to JPG. *but* what makes supporting the TIFF format so important for the
purposes of working with museums and galleries is that it demonstrates that
we can do very good work (and take professional care of) their high quality
images. If we can only support compressed formats then the museums and
galleries can quite legitimately ask us why would we want high-res files. At
that point it returns us to arguing over pixel-widths...
Wrong. TIFF is a container format. The contents in a TIFF file can
be compressed or uncompressed, losslessly or lossy.
PNG/MNG is a container format. It can also have compressed or
uncompressed, losslessly or lossy.
DJVU and PDF can also contain compressed or uncompressed chunks,
losslessly or lossy.
So, not only is
supporting lossless file formats good for WikiSource texts and good for
image restorationists, it is also good for our future negotiations with
museums and galleries.
TIFF support is good for future negotiations because it means that we
don't need to argue with them about which file formats are better, or
concern ourselves with the feasibility of transcoding large
collections.
--
John Vandenberg