Hoi,
John you are right. TIFF can be everything you describe. The question I am
left with what is your point to this? Material is scanned without
compression by GLAM, we get it per standard as TIFF files, we restore them.
When the material is compressed, we do not restore them. We need to retain
the original to demonstrate provenance. It is problematic to have files
nobody can see in a standard way. This is why we need TIFF support, because
otherwise we are likely find an admin who starts deleting this essential
material.
Thanks,
GerardM
2009/9/13 John Vandenberg <[email protected]>
> On Sat, Sep 12, 2009 at 6:52 PM, Liam Wyatt <[email protected]> wrote:
> > On Sat, Sep 12, 2009 at 8:41 AM, Gerard Meijssen <
> [email protected]>
> > 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
>
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