Good tool for finding photo duplicates based on image data
SimilarImages is a free application designed to find similar images (duplicates) on your hard drives.
Description:
This simple GUI will help you to easy check your images for duplicates It includes the following Preferences:
- Configurable Threshold: You may change the threshold depending on your needs. Once analyzed you may change the threshold without having to analyzed images again (if you don't alter the list)
- Three search types:
- Normal Search - which will compare all images with all other images
- Inclusive Search - which will only compare images contained in same folder with each other
- Exclusive Search - which will only compare images not contained in same folder
- Semi-Automatic-Deletion: You may choose a rule which will preselect a file in review mode, so that you don't have to compare all the file properties yourself. Furthermore you may use the Auto-delete 0-Files feature which will apply the rule on all image pairs which are most similar.
- Result Cache that will seamlessly cache all the generated data so that later searches for already analyzed files will be much faster.
- Not-A-Match Database that will remember all non-matches.
GQView is free and can find duplicate images by similarity:
There is a Windows port, though I've only used it in Linux.