[digiKam-users] Comparing jpg files in directories with subdirectories to remove duplication etc.

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[digiKam-users] Comparing jpg files in directories with subdirectories to remove duplication etc.

Budge
The background to this request for help is that I have two sets of images which may in fact be the same but have been downloaded differently from camera or copied from camera and/or memory card and transferred.  I now have to sort them out!

Certainly some of the pictures appear to be the same but I have no idea which is the "best" in terms of resolution and completeness of original camera metadata.  I have several hundred files to deal with.

I know that digiKam can help here but would appreciate some help in doing this please as I am very new to digikam.
Budge
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Re: Comparing jpg files in directories with subdirectories to remove duplication etc.

Thomas D
Hi Budge,

In my opinion this is indeed a very common use case. But alas DK is currently not really helpful with this.
I do think this is indeed a difficult problem to work on. And multiple dialogs may be needed. I really hope the devs want to give this priority. I will gladly help with designing the UI/UX if the help is wanted.

What I currently do is use the 'jdupes' tool to identify files that are exactly identical and then delete duplicates. Then I have to use something like GwenView or similar to compare each duplicate.


Den lør. 5. dec. 2020 kl. 15.45 skrev Budge <[hidden email]>:
The background to this request for help is that I have two sets of images which may in fact be the same but have been downloaded differently from camera or copied from camera and/or memory card and transferred.  I now have to sort them out!

Certainly some of the pictures appear to be the same but I have no idea which is the "best" in terms of resolution and completeness of original camera metadata.  I have several hundred files to deal with.

I know that digiKam can help here but would appreciate some help in doing this please as I am very new to digikam.
Budge
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Re: Comparing jpg files in directories with subdirectories to remove duplication etc.

Budge
Hi Thomas,
Very many thanks for the suggestion.  I have installed jdupes and have been amazed.  It seems to do exactly what I wanted and more!

I created a testing directory with copies of the files with questioned provenance and ran it recursively without any options set just to see the results and this has immediately raised a question about the sources for the pairs of files:  

One set has just one directory of files.  These are shown with file names that are just the date of the image;day date and ToD in hr,min & sec as in 2009-10-22_11-14-23.jpg:

The other set is in annual and subdirectories for each day but the subdirectories have images numbered as in IMG_1246.JPG.

I suspect they have been downloaded using different software but most of the images are duplicates.

Until I become more familiar with digiKam I am going to keep one set in an archive folder separate from digiKam just in case I find some anomalies or issues with the metadata.  

Very many thanks again, your reply is much appreciated.
Regards,
Budge
 



On 06/12/2020 12:49, Thomas D wrote:

> Hi Budge,
>
> In my opinion this is indeed a very common use case. But alas DK is currently not really helpful with this.
> I do think this is indeed a difficult problem to work on. And multiple dialogs may be needed. I really hope the devs want to give this priority. I will gladly help with designing the UI/UX if the help is wanted.
>
> What I currently do is use the 'jdupes' tool to identify files that are exactly identical and then delete duplicates. Then I have to use something like GwenView or similar to compare each duplicate.
>
>
> Den lør. 5. dec. 2020 kl. 15.45 skrev Budge <[hidden email] <mailto:[hidden email]>>:
>
>     The background to this request for help is that I have two sets of images which may in fact be the same but have been downloaded differently from camera or copied from camera and/or memory card and transferred.  I now have to sort them out!
>
>     Certainly some of the pictures appear to be the same but I have no idea which is the "best" in terms of resolution and completeness of original camera metadata.  I have several hundred files to deal with.
>
>     I know that digiKam can help here but would appreciate some help in doing this please as I am very new to digikam.
>     Budge
>