[KPhotoAlbum] IPTC and EXIF, kphotoalbum, digikam

[Eivind Kjorstad]

Thomas Hummel wrote:
>   . EXIF tags are for technical picture info (focal, exposure, ...) 
>   . IPTC tags are more adequate to store comments or personnal info

Rigth.

>   . kphotoalbum uses EXIF tags for reading but does not use IPTC at
>     all and does not write EXIF tags

Rigth. I'm certain Jesper would welcome the ability to read IPTC-tags 
too. I'm not aware of any reason we would want to *NOT* do that.

>   . this is a choice (in order not to touch the original file, to be
>     able to store tags relative to read-only media), so won't be implemented

Not in Kphotoalbum, no. Jesper has stated publicly that he is against 
it, and there's good reasons to keep with the policy.

But there's no policy against plugins that make image-changes, assuming 
they display adequate warnings beforehand.

There already was (is?) a plugin that uses the rotation-info to 
physically rotate the jpeg, and thereafter reset the rotation-info. (so 
that the image will display rigth-side-up in applications *other* than 
kphotoalbum)

I don't see any fundamental problems with a "write EXIF/IPTC tags to 
image-file" plugin. Other than the fact somebody(tm) would have to write 
it. :-)




	Eivind Kjørstad