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Posted to dev@pdfbox.apache.org by "Tilman Hausherr (JIRA)" <ji...@apache.org> on 2014/07/03 17:28:24 UTC
[jira] [Closed] (PDFBOX-2180) LAB color space produces wrong colors
[ https://issues.apache.org/jira/browse/PDFBOX-2180?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tilman Hausherr closed PDFBOX-2180.
-----------------------------------
Resolution: Duplicate
Closing as duplicate, will add you in the other one.
> LAB color space produces wrong colors
> -------------------------------------
>
> Key: PDFBOX-2180
> URL: https://issues.apache.org/jira/browse/PDFBOX-2180
> Project: PDFBox
> Issue Type: Bug
> Components: Rendering
> Affects Versions: 2.0.0
> Reporter: Petr Slaby
> Priority: Minor
> Attachments: 000352.pdf, 0003521.jpg
>
>
> The attached example uses LAB colors. When rendering it using PDFToImage, the result is kind of violet, instead of black text and yellow rectangles (see the attached jpeg).
> When comparing 1.8 sources with current trunk, the incoming values are "scaled to range" in trunk PDLab#toRGB(), while this was not the case in 1.8 PDColorState and ColorSpaceLab. As far as I can tell, in 1.8 the values were only "clipped to range" in ColorSpaceLab#toCIEXYZ().
> If I remove the scaling in 2.0 the rendering is correct.
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