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Posted to issues@commons.apache.org by "Xavier Dury (JIRA)" <ji...@apache.org> on 2013/09/17 11:09:53 UTC

[jira] [Created] (IMAGING-112) JpegIptcRewriter.removeIPTC() does not remove all metadata

Xavier Dury created IMAGING-112:
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             Summary: JpegIptcRewriter.removeIPTC() does not remove all metadata
                 Key: IMAGING-112
                 URL: https://issues.apache.org/jira/browse/IMAGING-112
             Project: Commons Imaging
          Issue Type: Bug
    Affects Versions: 1.0
            Reporter: Xavier Dury


I'm trying to compute hashes from my images to detect duplicates.

To do so, I strip every metadata (like keywords I may have added) then compute a CRC32.

My problem is that JpegIptcRewriter.removeIPTC() does not remove all metadata as there is always a difference of 18 bytes (containing "Photoshop 3.0").

So could it be possible to remove those 18 bytes as well in removeIPTC() so that I can compute hashes?

Thanks,

Xavier

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