----- Original Message ----- From: Vishal Rao <[EMAIL PROTECTED]> To: Pune GNU/Linux Users Group Mailing List <[EMAIL PROTECTED]> Subject: Re: [PLUG] Custom TAGS for TIFF image files Date: Wed, 10 Nov 2004 23:59:42 +0530
> > On Wed, 10 Nov 2004 20:10:26 +0800, Santosh Balan > <[EMAIL PROTECTED]> wrote: > > The TIFF format seems simple, Im doing stuff with it at work > (embedding my custom data within a TIFF)... wrote my own little > 'library' to handle the TIFF format, writing Tags and IFDs and Fields > and all that as well... libtiff.org's libtiff doesnt seem too helpful > with creating IFDs (unless i missed something)... > > tags from 65000 to 65535 are OK, anything 'Custom' (below 65000) you > will have to register with adobe (if you are doing some commercial > app)... > > Search for the TIFF File Format Reference on Google you should get > some file called TIFF6.pdf which has the info... > > I can email you the PDF and a small quick-ref i wrote in another mail... > > -- > "Thou shalt not follow the null pointer for at its end madness and chaos lie." > -- > ______________________________________________________________________ > Pune GNU/Linux Users Group Mailing List: ([EMAIL PROTECTED]) > List Information: http://plug.org.in/mailing-list/listinfo/plug-mail > Send 'help' to [EMAIL PROTECTED] for mailing instructions. > ---------------------------------------------- Hi Vishal, It was heartening to know that someone in Pune has this expertise. To be specific, here is my challenge :- I need to read/update data from a TIFF file with a custom tag 34116 - which is registered by Scan Optics USA - which they call as SO-TIFF. This tag has a value which is actually a pointer to a user data area in the IFD. The user data is stored, in a 12 byte array in this area. I am able to read/write regular TIFF tags, by Pegagus ImagingXpress SDK in VB6. However this SDK is not able to read the data from the actual data area, where the pointer is addressing. Hence I was planning to move to libtiff from sourceforge.net ---------- If i need to write a program myself, which one is the best course of action ? If there are existing libraries that I can use, I would be glad, if you can give me the links/reference and general course of action. If you can spare your valuable time, I can send you a sample TIFF and the exact tech specs. Thanks a ton for the help. - Santosh KB -- ______________________________________________ Check out the latest SMS services @ http://www.linuxmail.org This allows you to send and receive SMS through your mailbox. Powered by Outblaze -- ______________________________________________________________________ Pune GNU/Linux Users Group Mailing List: ([EMAIL PROTECTED]) List Information: http://plug.org.in/mailing-list/listinfo/plug-mail Send 'help' to [EMAIL PROTECTED] for mailing instructions.
