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Posted to dev@pdfbox.apache.org by "Petr Slaby (JIRA)" <ji...@apache.org> on 2014/06/07 00:04:03 UTC

[jira] [Updated] (PDFBOX-2123) Optimize reading of 1-bit depth images in SampleImageReader

     [ https://issues.apache.org/jira/browse/PDFBOX-2123?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Petr Slaby updated PDFBOX-2123:
-------------------------------

    Summary: Optimize reading of 1-bit depth images in SampleImageReader  (was: Optimize reading of 1-bit depth images in )

> Optimize reading of 1-bit depth images in SampleImageReader
> -----------------------------------------------------------
>
>                 Key: PDFBOX-2123
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-2123
>             Project: PDFBox
>          Issue Type: Improvement
>          Components: PDModel
>    Affects Versions: 2.0.0
>            Reporter: Petr Slaby
>         Attachments: 000008_test-scan 20121105144109807.pdf, SampledImageReader.java.patch
>
>
> Reading of 1-bit depth (black and white) images in SampleImageReader can be optimized. The attached patch reduces the time spent in SampleImageReader#getRGBImage() from 4 seconds to 1.8 second on my notebook with the attached PDF.



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