I have a lot of photos in different folders. Some of them are copies of each other. I want to put those photos in one folder and I want a tool to identify the duplicate files.

I also want some photo managers.

I'm using Ubuntu 14.04


The first tool that comes to mind is digiKam. Here are some features mentioned on their site (link):

  • import pictures
  • organize your collection
  • view items
  • edit and enhance
  • create (slideshows, calendar, print, ...)
  • share your creations (using social web services, email, your own web allery, ...)

The ony possible issue is that it's part of KDE environment, so it may bring a lot of kde dependencies.

Another good tool is Darktable (link). It's description from their site:

darktable is an open source photography workflow application and RAW developer. A virtual lighttable and darkroom for photographers. It manages your digital negatives in a database, lets you view them through a zoomable lighttable and enables you to develop raw images and enhance them.

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  • But how can I find photos that are the same. – Vesal75 Aug 14 '15 at 11:50
  • digiKam has Find duplicates tool: link – kirill-a Aug 14 '15 at 11:54

It seems that Shotwell also has an automatic duplicated detection on the Import.

FileImportJob -- Duplicate detection occurs in the main thread by searching the database for photos with the same MD5 as the file. If no duplicates are found, a FileImportJob is fired off. This job copies the file into the library (generally ~/Pictures) if necessary or requested by the user. A PhotoFileInterrogator object sniffs out the file’s contents to determine various relevant information, such as the photo’s dimensions, colorspace, etc. That information is used to prepare a data structure for adding to the database. Thumbnails are also generated during this stage.

If all has gone well up to this point, the file is formally imported into the database. Because the thumbnail cache needs a database ID to store its thumbnails, writing the thumbnails has to be delayed until this point.

Source: https://wiki.gnome.org/Apps/Shotwell/Architecture/Importing#ImportQueuePage

Check also "How does Shotwell detect duplicates?" for more details.

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