2005.07.22 22:29 "Re: [Tiff] RE: Deciding whether data in Value/Offset field is Value oroffset to real data in the file", by Joris Van Damme
Anmol,
I am trying to code in C regarding tiff file. I want to write a section
of code which decides whether the data in the "Value" section of the
Entry of the
IFD(Last 4 bytes of each Entry) is an actual data or the pointer to the
actual data somewhere else in file. Will it always be the case that
if the actual data can fit in 4 bytes, it will be placed in teh
"value/offset" field.
Yes, that's right.
A short informal overview is here:
http://www.awaresystems.be/imaging/tiff/faq.html#q3
The complete specification, along with supplements, is hosted here:
http://partners.adobe.com/public/developer/tiff/index.html
Are you aware that there's an excellent library freeing you from all this nitty gritty detail? LibTiff is the mother of all TIFF codecs, and is here:
http://www.remotesensing.org/libtiff/
CONFIDENTIALITY NOTICE:
Hilarious.
Joris Van Damme
info@awaresystems.be
http://www.awaresystems.be/
Download your free TIFF tag viewer for windows here:
http://www.awaresystems.be/imaging/tiff/astifftagviewer.html