AWARE SYSTEMS
TIFF and LibTiff Mail List Archive

Thread

2004.09.01 20:39 "[Tiff] Stacked tiffs with colourmaps", by David Scriven
2004.09.02 01:27 "Re: [Tiff] Stacked tiffs with colourmaps", by Joris
2004.09.02 01:44 "Re: [Tiff] Stacked tiffs with colourmaps", by Chris Cox
2004.09.02 16:22 "Re: [Tiff] Stacked tiffs with colourmaps", by Ross A. Finlayson
2004.09.02 17:08 "Re: [Tiff] Stacked tiffs with colourmaps", by Bob Friesenhahn
2004.09.02 18:12 "Re: [Tiff] 16bit compressed colormaps", by Joris
2004.09.21 16:16 "Re: [Tiff] Alias Sketchbook Multi-Layer Tiff Files -- Specification", by Ian Ameline
2004.09.20 21:30 "[Tiff] Alias Sketchbook Multi-Layer Tiff Files -- Specification", by Ian Ameline
2004.09.21 16:01 "Re: [Tiff] Alias Sketchbook Multi-Layer Tiff Files -- Specification", by Joris
2004.09.27 19:14 "Re: [Tiff] Alias Sketchbook Multi-Layer Tiff Files -- Specification", by Ian Ameline
2004.09.27 19:34 "Re: [Tiff] Alias Sketchbook Multi-Layer Tiff Files -- Specification", by Joris
2004.09.24 13:02 "Re: [Tiff] Alias Sketchbook Multi-Layer Tiff Files -- Specification", by Joris
2004.09.24 12:36 "[Tiff] Possible (tiny) bug in LZW code", by Joris
2004.09.24 13:30 "Re: [Tiff] Possible (tiny) bug in LZW code", by Joris

2004.09.21 16:16 "Re: [Tiff] Alias Sketchbook Multi-Layer Tiff Files -- Specification", by Ian Ameline

Yes, I agree that I'm hijacking 2 tags that were intended for a very different purpose. Sketchbook V1 start to finish was done in about 3 months and I just didn't have the time to implement private tags (and figure out how to do it) in libtiff to accomplish this. We were in a tearing hurry.

Now may be a better time to do so. Obviously, I'll have to continue reading files that conform to the existing spec.

Suggestions on what tags to register and their semantics? Or just move over exactly what I have onto the private tags?

At 12:01 PM 9/21/2004, Joris wrote:

>Ian,
>

> > P.S. The Lawyers make me say; "This information is provided as-is, with > > no warranty of any kind, and is subject to change without notice."

>

>Despite these lawyers, it's always nice to see people who have the sense to be >open about their data.

>

>However, I feel you might be guilty of 'hijacking' some tags for purposes very >different from the ones specified in the specification. If you should feel >inclined to apply for regular private tags over at Adobe's website >(http://partners.adobe.com/asn/tech/tiff/tiffregister.jsp), and change your >documentation to reflect that, I'll be happy to add your private tags to the >TIFF Tag Reference Private Tags section >(http://www.awaresystems.be/imaging/tiff/tifftags/private.html), as well as >include your overview documentation in the appropriate section >(http://www.awaresystems.be/imaging/tiff/tifftags/docs.html). This will yield >even more effective openness, greater interchangability, and will also yield >more visibility for your company.

Download your free TIFF tag viewer for windows here: http://www.awaresystems.be/imaging/tiff/astifftagviewer.html

--
Regards,
Ian Ameline,

Software Architect,
Alias SketchBook Technical Lead.

-- Always do the right thing. This will gratify
some people and astonish the rest. -- Mark Twain.