[Digikam-devel] [Bug 133638] New: Image backup with thumbs and metadata database for fast searching

[dentharg at tlen.pl]

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http://bugs.kde.org/show_bug.cgi?id=133638         
           Summary: Image backup with thumbs and metadata database for fast
                    searching
           Product: digikam
           Version: 0.9.0-beta1
          Platform: Gentoo Packages
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: wishlist
          Priority: NOR
         Component: general
        AssignedTo: digikam-devel kde org
        ReportedBy: dentharg tlen pl


Version:           0.9.0-beta1 (using KDE KDE 3.5.4)
Installed from:    Gentoo Packages
Compiler:          gcc 4.1.1 
OS:                Linux

My dream is that digikam can create a backup CD/DVD that contains selected images together with database containing thumbnails, metadata, keywords, tags and all other information that can be used for fast-searching discs for a particular image.

Digikam could also store those databases when files are deleted from disc so one can easily find and extract an image from a disc.

Use case:
a) a user creates e.g. 5 DVDs with his RAW image files using digikam (he might even do a double-backup of each DVD).
b) digikam stores a database for each DVD on this particular DVD (burned together with images) and also in its cache.
c) user deletes files from disc to reclaim some HDD space; digikam knows those images and can browse through thumbs and metadata because it has all databases created for burned DVDs
d) user creates a search for images and some of them are on DVDs
e) digikam knows the name and/or hash/something that can identify the DVD on which the image is stored and can display this to user so s/he can get the image (digikam could also ask for the DVD to be inserted into the drive and pull the image from the disc)

Even if digikam data is deleted from users folder all of thumbs, metadata can be restored by importing all of databases distributed on backup CDs/DVDs that user burned using digikam.