The Mac app is Duplifinder.
It finds duplicates in iPhoto and gives you options to keep or delete. Mac users to the rescue with an even better solution. One of my readers pointed out that Duplifinder doesn’t find photos that are similar (only duplicates).
To rid your iPhoto collection of all those similar photos you’ll need PhotoSweeper. Here’s the problem. If you’re like most digital camera users, you take many, many photos and often they’re of the same subject. Which do you keep and which do you delete?
That requires a manual effort to import photos into iPhoto, or Aperture, or Lightroom, and then, one by one, check each photo, determine which is best and which can be deleted.
Most of us don’t go to that effort. We import every photo from the camera. And, we usually keep every photo stuffed into the Mac.
PhotoSweeper checks all those nearly the same but-not-quite-the-same photos so you can easily decide which to keep and which to discard.
Think of it as facial recognition but for every photo you drag and drop onto PhotoSweeper.
It uses six different methods to compare and contrast photos, including those that have been altered by iPhoto, Aperture, Lightroom or an external editor.
The built-in Media Window also gives you instant access to photos in iPhoto, Aperture, or Lightroom. You control the comparison settings, too.
PhotoSweeper is also useful as a photo browser because it displays similar photos but also photo details such as histogram and meta data.
If you have many hundreds of similar photos on your Mac, use PhotoSweeper just once to find the duplicates or similar photos.
Apple promoted facial recognition so much, you’ll wonder why they didn’t adapt the same technology to finding and deleting similar photos which really aren’t good enough to keep.