Find duplicates, near-duplicates and bursts
Portman2 finds duplicate photos, near-duplicates and bursts by what they look like rather than by file name, and shows each group as a card with a suggested keeper.
Click Duplicates in the sidebar's Library section. Its count is the number of groups found.
How groups are found
When the library is scanned, each photo gets a fingerprint of what it looks like. Photos whose fingerprints are close enough form a group. A card's heading says which kind it is: duplicates, a near-duplicates group, or a burst of shots taken together. Groups are refreshed with each scan. Very flat images, such as a plain sky, are left out on purpose, since they would match each other.
The cards
Instead of a grid, the view is a list of cards, one per group, each with the group's photos in a row. The photos are ordinary tiles: click one to open it in the viewer, and use its circle, its right-click menu and dragging just as in the grid.
- Click a card to highlight it.
- Tick a card's selection mark to select the group. Several groups can be selected.
The suggested keeper
In each group one photo carries a keep chip, with the reason it was chosen: the largest in pixels, then the largest file, then one that is in an album synced with QuMagie, then the earliest shot, then the shortest name — so IMG_1234.jpg is preferred to IMG_1234 (1).jpg. It is only a suggestion.
The Photos and Videos choice in the sidebar narrows the groups like any other view. When nothing is found, the view says so.