Phil:
Depending of the camera maker, the ammount
of exif tags changes (of course)
Some time are about 10 when the exif got lost
on even close to 300 in my Canon Camera.
The names of the tags that the listings of the
exifs come with are the ones that I would use
as the name of the tags.
So I would like to prepare a table to acomodate
for all possible (if possible) tags.
So if a file has that tag it will be placed there
if not well it will not be placed.
So after (in order to look for them)
I could supply a list of the tags and given the choice of
finding them depending on some condition the user wants...
times, dates, focal, temperature etc..
a.
So I have the doubt if the names will be always the same
b.
what happend if some company creates a new tag
You added them to your listing ??... and since it is not on my list
I will be aware of it.
c.
Is there possible names duplicate (I mean they state the same
value having the different tag names)
Any suggestion.
Emilio
Hi Emilio,
If it helps, the -list option lists all defined tag names. (probably won't help though as there are more than 8000 currently.)
The list of tags extracted by exiftool is continually growing. Even worse, exiftool will generate tag names on-the-fly for metadata types with ASCII tag ID's (like XMP).
So pre-defining a set of tags is usually not feasible unless you have a specific set of tags that you are interested in.
- Phil
Hi Phil:
8 000 arrrggggggggggggggggg
I have listed ALL and then Exif, XMP and IPTC
and some they seem like duplications...
What is the actual pourpose of having for example this 3 sistems on the same file?
I am a little bit lost ;) (actually completelly lost)
Emilio
PS
Many, Many years ago I worked (a spaniard) for the Ontario Water Commision
I actually worked in Toronto and Nakina, dos this compañy still exists?
Quote from: Phil Harvey on December 15, 2010, 11:38:56 AM
Hi Emilio,
If it helps, the -list option lists all defined tag names. (probably won't help though as there are more than 8000 currently.)
The list of tags extracted by exiftool is continually growing. Even worse, exiftool will generate tag names on-the-fly for metadata types with ASCII tag ID's (like XMP).
So pre-defining a set of tags is usually not feasible unless you have a specific set of tags that you are interested in.
- Phil
Yes, there are a LOT of duplicate tag names. The 3 standards you mentioned were developed by different people with different requirements. And yes, this is confusing. The Metadata Working Group (http://www.metadataworkinggroup.org/) is attempting to make some sense out of this madness, but so far they have only scratched the surface.
- Phil