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Posted to dev@pdfbox.apache.org by "ASF subversion and git services (JIRA)" <ji...@apache.org> on 2016/12/04 12:28:58 UTC
[jira] [Commented] (PDFBOX-3569) Performance regression in
PDColorSpace#toRGBImageAWT
[ https://issues.apache.org/jira/browse/PDFBOX-3569?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15719867#comment-15719867 ]
ASF subversion and git services commented on PDFBOX-3569:
---------------------------------------------------------
Commit 1772528 from [~lehmi] in branch 'pdfbox/trunk'
[ https://svn.apache.org/r1772528 ]
PDFBOX-3569: added a pure java CMYK2RGB conversion due to a performance regression when using ColorConvertOp.filter
> Performance regression in PDColorSpace#toRGBImageAWT
> ----------------------------------------------------
>
> Key: PDFBOX-3569
> URL: https://issues.apache.org/jira/browse/PDFBOX-3569
> Project: PDFBox
> Issue Type: Bug
> Components: Rendering
> Affects Versions: 2.0.3, 2.1.0
> Reporter: Andreas Lehmkühler
> Assignee: Andreas Lehmkühler
> Fix For: 2.0.4, 2.1.0
>
> Attachments: PDFBOX-1058.pdf-3.png, PDFBOX-1058.pdf-3.png, PDFBOX-1058.pdf-3.png-diff.png, PDFBOX-2700-JCS_YCCK.pdf-1.png, PDFBOX-2700-JCS_YCCK.pdf-1.png, PDFBOX-2700-JCS_YCCK.pdf-1.png-diff.png, PDFBOX-3569-patch_v2.txt, PDFBOX-3569-patch_v3.txt
>
>
> I've a private pdf containing 1900 tiny inline images (CMYK, 8bit) which renders way too slow. Again the CMYK2RGB conversion is the culprit here, BUT the known issue with the KCMS/LCMS change isn't the main problem here.
> I ran some tests on linux (PDFToImage time -imageType png -resolution 150)
> 1.6.0_37: 355s
> 1.7.0_25: 289s
> 1.7.0_75: 298s
> 1.8.0_101: cancelled after 15 min
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