# Maintenance Tool

## Introduction

Depending on your workflow, your &digikam; settings and whether you work on your images collection also with other programs it might be necessary to run maintenance operations from time to time to update the &digikam; databases and also your images regarding duplicates, face tags, quality labels etc. The maintenance tool can do that for you, even more than one operation in one go depending on your requirements.

## The Maintenance Features

### The Common Options

In the Common Options section you can restrict the scope of the maintenance process(es) to certain albums or tags. You got to un-check Whole albums collection or Whole tags collection to get access to the drop down fields where you can select albums or tags. If you switch from Albums to Tags or vice versa your selection in the now grayed out item will remain untouched which might be useful if you need a certain selection more often.

Since many of the processes the maintenance tool can perform are time consuming (depending also on the scope, of course) you have the choice to check Work on all processor cores if your machine has more than one and they are not occupied otherwise.

### The Scan for New Items Tool

This process will scan the collections you defined in Settings Configure &digikam;Collections for new items, &ie; image files you added to your collections while &digikam; was not running. You can run this process also automatically on &digikam; startup by checking Scan for new items at startup in Settings Configure &digikam;Miscellaneous .

### The Rebuild Thumbnails Tool

TODO

### The Rebuild Fingerprints Tool

TODO

### The Find Duplicates Tool

TODO

### The Face Management Tool

TODO

### The Image Quality Sorter Tool

The Image Quality Sorter assigns quality labels to images according to the settings in Settings Configure &digikam;...Image Quality Sorter . There you also have to enable this tool if you want to use it. Since it is a time consuming process it's a good idea to check Work on all processor cores and restrict the job to certain albums or tags. The tool will set the red flag for rejected, the yellow one for pending and the green one for accepted.

### The Metadata Synchronizer Tool

TODO