There is no questions, tags must be saved to jpeg metadata, it's standard! J.
2009/8/14 Kent Tenney <[email protected]> > > On Thu, Aug 13, 2009 at 3:03 PM, leiz<[email protected]> wrote: > > > > I think tags/comments and red-eye (for whatever reason) are the only > > operations that change your photos directly. I don't think it can be > > turned off. Keep in mind this only changes the JPEG metadata, and > > doesn't modify the image portion of the JPEG file. > > Right, not the 'image portion' of the file, but the file is being changed, > the date changes, the checksum changes, the size changes. > > There are benefits of writing metadata to the image file, however > I prefer original images to be immutable. > > > > > The IPTC fields are standard fields that many photo apps understand. > > Would you rather have Picasa store tags in some format that's less > > exchangeable with other apps? > > If Picasa is going to write to my files, IPTC is probably fine, > though XMP seems to be the preferred currently. > > Thanks, > Kent > > > > > > On Aug 13, 12:16 pm, Kent Tenney <[email protected]> wrote: > >> leiz, > >> > >> So Picasa changes the image file on disk when > >> a tag or comment is applied? > >> > >> I consider that presumptious, I would prefer my original files > >> not be changed. > >> > >> It would be great if the format of the Picasa database were > >> documented. > >> > >> If Picasa developers follow this list I'd be interested in any > >> comments on the db format, and the wisdom of altering the > >> image files. Is this something that can be turned off? > >> > >> Thanks, > >> Kent > >> > >> > >> > >> On Thu, Aug 13, 2009 at 1:59 PM, leiz<[email protected]> wrote: > >> > >> > Picasa stores comments and tags inside JPEG files as IPTC data. For > >> > instance, I took foo.jpg and added "test_comment" along with the tags > >> > "testtag1" and "testtag2" When I examine the file with exiv2 [1] as > >> > follows: > >> > >> > exiv2 -pi print foo.jpg > >> > >> > I get: > >> > >> > Iptc.Application2.Caption String 12 > >> > test_caption > >> > Iptc.Application2.Keywords String 8 testtag1 > >> > Iptc.Application2.Keywords String 8 testtag2 > >> > >> > [1]http://www.exiv2.org/ > >> > >> > On Aug 2, 12:22 pm, ktenney <[email protected]> wrote: > >> >> Howdy, > >> > >> >> I'm starting to use Picasa 3 for Linux. > >> > >> >> Before I invest lots of time into tagging and captioning, I'd like to > >> >> know > >> >> that information is accessible from outside Picasa. > >> > >> >> Is there a programming API for Picasa? > >> >> Is the database format documented? > >> >> Is it possible to export to some kind of text format: xml or csv? > >> > >> >> Thanks, > >> >> Kent > > > > > > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google-Labs-Picasa-for-Linux" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/Google-Labs-Picasa-for-Linux?hl=en -~----------~----~----~----~------~----~------~--~---
