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https://issues.apache.org/jira/browse/PDFBOX-5738?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17796547#comment-17796547
]
Tilman Hausherr edited comment on PDFBOX-5738 at 12/14/23 5:24 AM:
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{code:xml}
<?xml version="1.0" encoding="UTF-8"?><javax_imageio_1.0>
<Chroma>
<ColorSpaceType name="YCbCr"/>
<NumChannels value="4"/>
</Chroma>
<Compression>
<CompressionTypeName value="JPEG"/>
<Lossless value="FALSE"/>
<NumProgressiveScans value="1"/>
</Compression>
<Dimension>
<ImageOrientation value="Normal"/>
</Dimension>
<Transparency>
<Alpha value="nonpremultipled"/>
</Transparency>
</javax_imageio_1.0>
{code}
{code:xml}
<?xml version="1.0" encoding="UTF-8"?><javax_imageio_jpeg_image_1.0>
<JPEGvariety/>
<markerSequence>
<dqt>
<dqtable elementPrecision="0" qtableId="0"/>
</dqt>
<sof process="0" samplePrecision="8" numLines="3508" samplesPerLine="2480"
numFrameComponents="4">
<componentSpec componentId="1" HsamplingFactor="1" VsamplingFactor="1"
QtableSelector="0"/>
<componentSpec componentId="2" HsamplingFactor="1" VsamplingFactor="1"
QtableSelector="0"/>
<componentSpec componentId="3" HsamplingFactor="1" VsamplingFactor="1"
QtableSelector="0"/>
<componentSpec componentId="4" HsamplingFactor="1" VsamplingFactor="1"
QtableSelector="0"/>
</sof>
<dht>
<dhtable class="0" htableId="0"/>
</dht>
<dht>
<dhtable class="1" htableId="0"/>
</dht>
<sos numScanComponents="4" startSpectralSelection="0"
endSpectralSelection="63" approxHigh="0" approxLow="0">
<scanComponentSpec componentSelector="1" dcHuffTable="0" acHuffTable="0"/>
<scanComponentSpec componentSelector="2" dcHuffTable="0" acHuffTable="0"/>
<scanComponentSpec componentSelector="3" dcHuffTable="0" acHuffTable="0"/>
<scanComponentSpec componentSelector="4" dcHuffTable="0" acHuffTable="0"/>
</sos>
</markerSequence>
</javax_imageio_jpeg_image_1.0>
{code}
was (Author: tilman):
{code:xml}
<?xml version="1.0" encoding="UTF-8"?><javax_imageio_1.0>
<Chroma>
<ColorSpaceType name="YCbCr"/>
<NumChannels value="4"/>
</Chroma>
<Compression>
<CompressionTypeName value="JPEG"/>
<Lossless value="FALSE"/>
<NumProgressiveScans value="1"/>
</Compression>
<Dimension>
<ImageOrientation value="Normal"/>
</Dimension>
<Transparency>
<Alpha value="nonpremultipled"/>
</Transparency>
</javax_imageio_1.0>
{code}
> Wrong colors in PDF since PDFBOX-5488
> -------------------------------------
>
> Key: PDFBOX-5738
> URL: https://issues.apache.org/jira/browse/PDFBOX-5738
> Project: PDFBox
> Issue Type: Bug
> Components: Rendering
> Reporter: Oliver Schmidtmer
> Priority: Major
> Attachments: Rechnung 983312924 (Carbagas).pdf
>
>
> Since the workaround for PDFBOX-5488, the attached PDF has wrong colors.
> The base issue from PDFBOX-5488 might be a difference between the reported
> color space from the metadata-tree for the user and the raw pixel data when
> readRaster is used, at least if I understand this correctly:
> [https://github.com/haraldk/TwelveMonkeys/issues/571]
> For the default JPEG Image Reader this is not a problem, as
> reader.getImageMetadata throws an Exception "javax.imageio.IIOException: JFIF
> APP0 must be first marker after SOI" and "getAdobeTransformByBruteForce" is
> used instead of "getAdobeTransform".
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