dupeGuru Picture Edition is a tool to find duplicate pictures on your computer. dupeGuru PE is efficient, thanks to its quick fuzzy matching algorithm. Not only can dupeGuru PE find exact matches, but it can also find duplicates among pictures of different kind (PNG, JPEG, GIF, etc.) and quality. dupeGuru PE is customizable. You can tweak its matching engine to find exactly the kind of duplicates you want to find. The Preference page of the help file lists all the scanning engine settings you can change. dupeGuru PE is safe. Its engine has been especially designed with safety in mind. Its reference directory system as well as its grouping system prevent you from deleting pictures you didn't mean to delete. dupeGuru PE supports JPG, PNG, TIFF, GIF, BMP, and PSD formats. All these formats can be compared together. Not only can you delete the duplicate pictures dupeGuru PE finds, but you can also move or copy them elsewhere. You can also easily weed the bad duplicates out, thanks to the Power Marker.
What is new in Dupeguru PE 2.0.0 version
* Re-designed the UI. (#129)
* Internationalized dupeGuru and localized it to french. (#32)
* Changed the format of the help file. (#130)
* The “Dimensions” column is now affected by the delta mode. (#115)
* Removed focus from the cancel button in the progress dialog to avoid accidental cancellations. [Mac OS X] (#135)
* Folders added through drag and drop are added to the recent folders list. (#136)
* Added a debugging mode. (#132)
Install dupeguru PE 2.0.0 in ubuntu
Download deb package from here once you have deb package you can install by double cliking on it.