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https://issues.apache.org/jira/browse/IMAGING-112?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xavier Dury updated IMAGING-112:
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Attachment: imaging-112.patch
> JpegIptcRewriter.removeIPTC() does not remove all metadata
> ----------------------------------------------------------
>
> Key: IMAGING-112
> URL: https://issues.apache.org/jira/browse/IMAGING-112
> Project: Commons Imaging
> Issue Type: Improvement
> Affects Versions: 1.0
> Reporter: Xavier Dury
> Fix For: Review Patch
>
> Attachments: ImageTest.java, imaging-112.patch, patch.txt
>
>
> 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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