Have you ever tried to manually check a digital image collection for duplicates? When I look at the images stored on my computer, I'd imagine that it would take ages to go through it manually to find duplicates, and even if I would manage to do so, I'd end up finding only some dupes due to its size.
The best option in my opinion is to use programs that automate, or at least semi-automate the process for you so that you just have to go through the results a program presents to you instead of doing all the hard lifting manually.
I have mentioned Similar Images before here on the site, in an article that explained how you can find duplicate files on your computer system. Since images are nothing more than files, I decided to give it a try to see how well it would cope combing through my image collection.
Similar Images scanned my collection of 75000 files in three hours and displayed all images it identified as dupes next to each other.The program displays both images next to each other as thumbnails, and also important information such as file size or resolution. You have options to delete one of the images or skip this set and move on to the next.
It is also possible to delete similar images automatically by defining rules in the options first. You can change a number of settings in the options. If you only want to compare files in the same folder or only in different folders for instance. It is also possible to lower the execution priority to lower the load and make the system more responsive.
Great tool, found lots of duplicates and I was reluctant to use the automatic routine to delete duplicates.
Update: The duplicate image finder is no longer available. As far as alternatives go, I suggest you check out the Anti Duplicate program which gets still updated regularly. The program works by selecting files or folders that you want to check for duplicates.
What I like about the program most is that it displays previews of images right in its interface so that you can compare the images side by side before you delete one of them or skip the pair.
Other important parameters, like resolution and size, are also displayed here so that it is relatively easy to go through a collection of pictures on a system to find and delete all the duplicates from it.
Options in detail
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Ghacks is a technology news blog that was founded in 2005 by Martin Brinkmann. It has since then become one of the most popular tech news sites on the Internet with five authors and regular contributions from freelance writers.
You just made my day :-) for ages I used the shareware program DPeg and then they did a rebuild of it and wanted me to pay for another registration so I decided not to bother with it anymore, been looking for a good image dupe program ever since.
I just installed this program and I thinkis really great, I have a lot of pictures and many of them duplicated, but in just a few minutes this program found all this images. Thanks for this tip.
Too slow and too resource hungry.
My DOpus can find duplicates in 1/100 th of the time.
What is DOpus?
Kinda useless tool. Has one “weight setting” that defaults to some arbitrary “35”. To even find dupes that have just been Brightened or Gamma Corrected you need to up that single setting to its ‘maximum’ 75. And it still doesn’t find as many valid dupes as either Visipic or DupDetector. Granted it is better than DupliFinder – while its’ still thinking about processing the 2nd or 3rd image in a folder “Similiar Images”, Visipic and DupDetector have all finished processing 1400+ pics and are displaying results.
Man you rock.
Seriously.
I’ve had a need to find duplicate images due to my terrible photo addiction.
So, I started searching on my own, tried out dupeGuru Picture Edition which was appealing ’cause it’s open source, but it’s just okay and it isn’t heavily maintained any longer.
I had downloaded VisiPics but I didn’t install it because I decided to search your site before moving on and trying others since I figured that you must have written something about something at one point and you have.
Of course you have! In fact, several articles.
But this one started me on AntiDupl and it’s perfect for my needs.
A long overdue, sincere thanks for all that you do Martin.
I personally understand the amount of time that you have to invest and the work that you do from discovery, research, installing programs, setting them up, exploring them, tweaking them, taking screenshots, writing, uploading and posting because I used to do the same.
I appreciate all that you do here and the service(s) that you provide.
Thank you.
You’re cool and selfless. You’re a good guy.
And that’s not just my early 4th of July celebratory beers talking.
–
Well, maybe just a little.
Happy 4th Ken :)
Oh ya!!!!
Well, Your comment is awaiting moderation too!! :)