AWARE SYSTEMS
TIFF and LibTiff Mail List Archive

Thread

2005.06.30 02:54 "[Tiff] ftp.remotesensing.org ftp site update", by Frank Warmerdam
2005.07.05 18:04 "[Tiff] [ANNOUNCE]: Libtiff 3.7.3 released", by Andrey Kiselev
2005.07.06 16:14 "Re: [Tiff] [ANNOUNCE]: Libtiff 3.7.3 released", by Frank Warmerdam
2005.07.06 17:01 "RE: [Tiff] [ANNOUNCE]: Libtiff 3.7.3 released", by Thom DeCarlo
2005.07.21 17:23 "[Fwd: [Tiff] Looking for the definitions of (MS Specific?) tags]", by Ulf Zibis
2005.07.21 18:45 "Re: [Tiff] Looking for the definitions of (MS Specific?) tags", by Joris

2005.07.21 17:23 "[Fwd: [Tiff] Looking for the definitions of (MS Specific?) tags]", by Ulf Zibis

Hi Joris,

you remember our conversation around the 19 May.

Please publish the "known unknown" tags on your web-site. This perhaps will enforce Microsoft to give an official comment to the actual meaning and will enthuse other developers, to include support for this tags in their programs.

Regards

Ulf

-------- Ursprüngliche Nachricht --------
Betreff: Re: [Tiff] Looking for the definitions of (MS Specific?) tags
[part 1]
Datum: Thu, 19 May 2005 16:27:18 -0400
Von: Frank Warmerdam <fwarmerdam@gmail.com>
Rückantwort: warmerdam@pobox.com

An:     Joris <joris.at.lebbeke@skynet.be>
CC:     Ulf Zibis <Ulf.Zibis@gmx.de>

Referenzen: <20050518181712.92171.qmail@web54601.mail.yahoo.com> <001701c55c18$8b04df50$89adf551@dfgrrxsknr4e> <428C9A5E.8070707@gmx.de> <001d01c55c86$bf6f1b70$d6adf651@dfgrrxsknr4e>

<001401c55c99$2be24d10$dbbbf651@dfgrrxsknr4e>

On 5/19/05, Joris <joris.at.lebbeke@skynet.be> wrote: > Assuming it's all feasable, do you feel such information is even useful?

Joris,

I think brief "known unknown" entries would be useful if it is practical for you to maintain such.

-------- Ursprüngliche Nachricht --------

Betreff: Re: [Tiff] Looking for the definitions of (MS Specific?) tags
[part 1]
Datum: Thu, 19 May 2005 19:41:53 +0200

Von:    Joris <joris.at.lebbeke@skynet.be>
An:     Ulf Zibis <Ulf.Zibis@gmx.de>

Referenzen: <20050518181712.92171.qmail@web54601.mail.yahoo.com><001701c55c18$8b04df50$89adf551@dfgrrxsknr4e> <428C9A5E.8070707@gmx.de> <002301c55c8d$c7965730$87b5f651@dfgrrxsknr4e> <428CC422.6040607@gmx.de>

Ulf,

 > Long time ago I send you those tags. Why you don't publish them on your
 > TIFF menu page http://www.awaresystems.be/imaging/tiff.html?

Yes, I thought they look familiar... To be quite honest, I had forgotten all about them. I imagine, but I'm not even sure I remember correctly, that I was

still right in the middle of it and unable to take them on at the time. I have

failed to remember them when I did have the opportunity to consider them.

I hope I've answered your question in two mails I've written few minutes ago,

though. First was on-list, saying why I don't think it's the right thing to do

to include them in the tag directory the usual way. But shortly after I had sent

that mail, I realized though there might be another, better approach to publish

the tags, and I've asked for your and Frank's opinion in a second mail, private

this time.

I hope you've received all of that, but, honestly, these days, I'm starting to

have serieus doubts about the reliability of not just my memory, but also e-mail. Let me know if you don't receive the two e-mails I referred to above.

Joris

-------- Ursprüngliche Nachricht --------
Betreff: Re: [Tiff] Looking for the definitions of (MS Specific?) tags
[part 1]
Datum: Thu, 19 May 2005 19:35:35 +0200

Von:    Joris <joris.at.lebbeke@skynet.be>
An:     Frank Warmerdam <warmerdam@pobox.com>, Ulf Zibis <Ulf.Zibis@gmx.de>

Referenzen: <20050518181712.92171.qmail@web54601.mail.yahoo.com><001701c55c18$8b04df50$89adf551@dfgrrxsknr4e><428C9A5E.8070707@gmx.de> <001d01c55c86$bf6f1b70$d6adf651@dfgrrxsknr4e>

Frank, Ulf,

I wrote:
> Such a page is of use to nobody...

I was at the time mainly considering an individual tag page for each 'known unknown'. But thinking of it further, I might of course add only a single-page subsection to http://www.awaresystems.be/imaging/tiff/tifftags.html, with a list of 'known unknown' tags. Such a page would be similar in content and hiërarchy to e.g. the http://www.awaresystems.be/imaging/tiff/tifftags/baseline.html section, except that it would not link on to individual tag pages because there are none. The essential info then, of such a page, is that these tags are 'known unknown', i.e. at a certain point investigation has been done and nothing much came up. It can also be a reminder to people that own the tags, of course.

Plus, I'd make them show up in the search results. So if you would query http://www.awaresystems.be/imaging/tiff/tifftags/search.html for say '4000', you'd get a report saying that it's a 'known unknown' with something like the additional line stating that it's an MS fax tag and maybe that it's been 'spotted' with a single particular datatype only sofar or whatever good use that the short description line can serve.

Assuming it's all feasable, do you feel such information is even useful?

Joris