EXIF management

Christopher Dubea

• September 10, 2023 16:47
• Edited

So,

I'm migrating my DAM to Digikam.

In the past I've used a plethora of DAM tools which led to an absurd amount of detritus in my exif files.

I've gotten through all that with judicious usage of the wonderful exiftool, but, and there always is a but.....

Capture One read some of the malformed exif data and stored it in cos files.

At first glance it appears that exiftool will read cos files, but not write to them.

Is there any way to do a bulk deletion of the Content_Keywords and Content_SupplementalCategories fields in a Capture One cos file?

Thank you

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• 

  Christopher Dubea

  • September 10, 2023 20:43

  Well, a little bit of Python makes this a snap:

   

  import os

  # folder path
  path = r"Y:\"

  for path,subdir,files in os.walk(path):

      for name in files:
          if str(name).endswith('.cos'):
              filename= os.path.join(path,name)
              oldfile=filename+'.old' 
              print('oldfile = ', oldfile)
              print ("filename = ", filename)
              #rename existing cos to cos.old
              os.rename(filename, oldfile)
              #open old file
              f1 = open(oldfile, "r+")
              #create replacement cos file for writing to
              f2 = open(filename, "w+")
              for line in f1:
                  #read old file line by line
                  if 'Content_Keywords' in line:
                      line = '            <E K="Content_Keywords" V="" />'+'\r'
                  if 'Content_SupplementalCategories' in line:
                      line = '            <E K="Content_SupplementalCategories" V="" />'+'\r'
                  #write old file line by line
                  f2.write(line)   
              #close files when done
              f1.close()
              f2.close()

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• 

  BeO

  • September 11, 2023 05:42

  

  Hi Christopher,

  Are you on Windows or Mac? If you are on Windows, can you still drag&drop images from Digikam to a C1 album with C1 version 23?

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• 

  Christopher Dubea

  • September 11, 2023 12:35

  I've got C1 on a Windows box. Unfortunately, I've got Digikam installed on a Linux box at the moment so I can't answer your question. Secondarily, I'm only up to v22 on C1. This is more of an experiment than anything right now. Currently, I'm doing my DAM duties in LR v6.14 and that has been fine, but at some point that will no longer be viable, so I was investigating opportunities.

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  BeO

  • September 11, 2023 14:22

  

  Thanks. If you like, tell us your experience and decision after your investigation process, I would be interested in that.

  I stopped my own investigation when I detected the drag&drop regression defect in v23. As this is a central feature for me I wanted to make sure that higher versions than v22 would still work in that regard, so I installed the v23 trial version and C1 failed. It does work though when the drag-source is a C1 catalog, which I currently use, but neither from Digikam nor from Windows Explorer, which should be standard, so the fault is definitely in C1 v23.

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