Distinctively different images were marked as duplicates, probably because the capture time would have been the same down to the second and the bulk of the image вЂ“ the only noticeable difference being the position of the ball вЂ“ had PhotoSweeper marking them as dupes, when sometimes one was worthless and the other publishable.В I also found some similar issues with bokeh. Using the default settings, I found sports images were often incorrectly marked. You can choose to remove different file formats via preferences, and sort the photo list andВ results. Talking of preferences, PhotoSweeper can not only compare photos, but videos, Quicktime files, flash filesвЂ¦ lots of things.

Using PhotoSweeper made life veryВ easy.ДЄ batch of RAW+ JPEG images had PhotoSweeper finding each pair as a match, but this problem can be solved with a quick trip to preferences, where I selected вЂњPhotos of the same formatВ onlyвЂќ.ДЄperture handles RAW+ JPEG pairs well вЂ“ I'm not keen to delete them by accident вЂ“ so I'll leave that settingВ on. Deleting these via the finder is, well, a hassle.

PhotoSweeper makes comparisons based on вЂњAn algorithm for comparison and grouping: Bitmap, Histogram, Time Interval, Time+Bitmap, Time+Histogram and DuplicatesВ OnlyвЂќ.ДЇor finding exact duplicates, PhotoSweeper searches for identical content, regardless of the file name (although there is a setting for this in preferences, forcing PhotoSweeper to find matched file namesвЂ¦) so it easily found and identified a folder of images which had been imported from a card twice, which results in a (1) being appended to the end of each file name. PhotosweeperвЂ™s homepage shows a huge list of features and benefits

Photosweeper does not delete photos