App: Image Snooper
Developer: Steve Mills
Genres: Photo & Video, Utilities

Have you ever downloaded an image only to find out later that you already had it? Or have you ever wanted to find all of the photos from your vacation that include your dad in his lime green Hawaiian shirt? Image Snooper can help.

Using fast and simple comparison algorithms, Image Snooper can easily find all images in folder (and its subfolders) that resemble the search image. It can also quickly gather images that contain a certain color—useful for finding images of a certain brand logo or that compliment a color theme.

The search image and search folder can be set by simply dragging & dropping a file or folder to Image Snooper's icon, so you can spend less time digging through the Open dialog. You can also save commonly used search folders as favorites.

Key features:

•Fast image comparison.
•Adjustable comparison approximation.
•Compares images rotated at 90°, 180°, and 270°.
•Optionally attempts to find partial matches.
•Contextual menu for opening, revealing, and trashing files.
•Sort results by name or match score.
•Quick Look with spacebar.
•Services menu items for setting the search image and search folder.
•Drag images directly from a web browser window.

Release notes:
•Sort favorites in the popup.
•Clear out invalid folders from prefs, due to migration from older OSes.
•Add drag & drop support so found files can be dragged to move/copy/whatever them.