[KimDaBa] Re: EXIF info
doug at ties.org
Sun May 8 10:52:04 CEST 2005
Jesper K. Pedersen wrote:
> | I would like the ability to use EXIF data from images like I use
> | keywords. Show me every image taken at ISO 1600. Or every image with a
> | shutter speed between 1/100 and 1/300 sec. Or every image taken with a
> | particular lens. I know I can do most of this (except for the range
> | stuff) by setting keywords from the Perl interface. Maybe that's good
> | enough, but it would be nice for it to happen automatically.
> OK, I'll try to answer any comments on EXIF in this reply.
> First of all, there are multiple issues to EXIF:
> - viewing (could be done from the viewer's info box - eventually with a link
> that brings up a property page or something)
> - searching (This is more than just the usual keywords, now we also want to
> see shutter between 1/100 and 1/300 etc)
> I'm to some extend also kind of worried about how much data this would add to
> the XML file, so it should indeed be optional, to avoid adding load time for
> those people (like me) who would never use this.
I think that for just displaying EXIF there's no need to store the info
in the XML file... just go get it from the original image. For actually
being able to search on EXIF data I think this would be too slow and it
would have to be in the XML. But I don't think there's a need to import
every single EXIF tag (there can be dozens), just those the user has
decided to promote to a searchable field.
The bit about searching in a range is nice but much less important IMHO.
Like I said I think the rest could be done with Perl; maybe I'll give
it a try and post an example script, or maybe someone will beat me to it.
> Anyway, all this basically boils down to the problem that my camera isn't
> fancy enough to give me all such information (or if it does, it wouldn't mean
> much to me).
I use the EXIF mostly to evaluate my *photography* rather than my
*images*. Why is this particular picture bad? Do I consistently get
sharp pictures with this lens? Answering these questions helps me to
improve technically as a photographer.
> So this would be a feature to implement I would have no use for
> myself. Having said that, I'm still thinking about it, but dont hold your
> breath. (If this is something you would gain something from professionally,
> consider sponsoring that feature. Money in the bank always motivate me for
> features I dont use myself :-)
I am not a pro myself, but maybe such an appeal on the KimDaBa web page
would yield some hits.
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