![]() Once you have done something trivial, like add a bit of metadata or resave with a different compression level, then the files are no longer equal and they will not be identified. Many of the other programs, such as Zoner, are also like this. I agree with this evaluation, but it will only detect images whose files are completely identical, either in content, or name, or whatever other option is chosen (is also compares music metadata, but that is not useful for photos). This is a paid program, but is an excellent general duplicate finder. I am currently using a Duplicate finder called “Easy Duplicate Finder”. It does a good enough job that I thought it was worth paying for. He also makes Duplicate photo cleaner, which is a bit of a misnomer, because it has a “degree of similarity threshold setting” so the images do not have to be exact duplicates. ![]() Some of the “high degree of match” results were quite laughable.įor identifying identical files, I have long recommended Easy Duplicate Finder (despite the developer’s annoying habit of regularly reworking the user interface). The result then was that none satisfied all the criteria, and some of them failed all criteria. they had to identify images that had been rescaled/resampled to lower resolution. ![]() they had to identify images that had been somewhat cropped they had to identify jpegs where I had rewritten portrait image according to the exif orientation flag. A couple of years ago I looked at a pile of image comparison programs, free or limited demos of ones that were not too expensive. ![]()
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