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https://issues.apache.org/jira/browse/PDFBOX-5137?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tilman Hausherr resolved PDFBOX-5137.
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Assignee: Tilman Hausherr
Resolution: Fixed
Thanks for the report and the solution!
> Wrong classification of an JPEG image leading to a blank image added to a pdf
> document
> --------------------------------------------------------------------------------------
>
> Key: PDFBOX-5137
> URL: https://issues.apache.org/jira/browse/PDFBOX-5137
> Project: PDFBox
> Issue Type: Bug
> Affects Versions: 2.0.23
> Reporter: Matej Risek
> Assignee: Tilman Hausherr
> Priority: Minor
> Fix For: 2.0.24, 3.0.0 PDFBox
>
>
> According to
> [https://docs.oracle.com/javase/8/docs/api/javax/imageio/metadata/doc-files/jpeg_metadata.html]
> the number of image components should be read from the
> markerSequence/sof/@numFrameComponents if you want to retrieve the number of
> the whole image.
> At the moment the number is being read from the first {{Start Of Scan marker
> segment}} (sos) xPath encounters which in our case lead to the wrong
> classification of an image as a Grayscale instead of RGB resulting in a blank
> image added to the final PDF document.
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