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From "Benedikt Ritter (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (IMAGING-112) JpegIptcRewriter.removeIPTC() does not remove all metadata
Date Mon, 19 Jan 2015 13:31:34 GMT

     [ https://issues.apache.org/jira/browse/IMAGING-112?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Benedikt Ritter updated IMAGING-112:
------------------------------------
    Fix Version/s:     (was: Patch Needed)
                   Review 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, 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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