[jira] [Commented] (TIKA-2846) Add per page unicode mapping stats to the metadata in the PDFParser

["Tim Allison (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/TIKA-2846?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16808893#comment-16808893 ] 

Tim Allison commented on TIKA-2846:
-----------------------------------

Thank you, again, [~tilman]!

> Add per page unicode mapping stats to the metadata in the PDFParser
> -------------------------------------------------------------------
>
>                 Key: TIKA-2846
>                 URL: https://issues.apache.org/jira/browse/TIKA-2846
>             Project: Tika
>          Issue Type: Task
>            Reporter: Tim Allison
>            Assignee: Tim Allison
>            Priority: Major
>             Fix For: 1.21
>
>
> As part of TIKA-2749, it would be useful to gather stats on characters that did not have a unicode mapping.  Users could use this information now to determine which pages might benefit from OCR.
> I propose two parallel arrays of ints, with one entry per page.  The first would contain the count of # of characters per page, and the second would be a count of the unmapped unicode characters per page.
> Many thanks to [~tilman] for the guidance on how to gather this info easily.



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