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https://issues.apache.org/jira/browse/SANSELAN-48?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13017891#comment-13017891
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Damjan Jovanovic commented on SANSELAN-48:
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The other thing we could consider is using the TIFF implementation from Apache
XMLGraphics Commons
(http://svn.apache.org/viewvc/xmlgraphics/commons/trunk/src/java/org/apache/xmlgraphics/image/codec/tiff/TIFFFaxDecoder.java?revision=750418&view=markup).
But I am personally hoping for one that's flexible enough to extract images
directly out of T.38 (fax over IP) packets, and that one can't (it needs to
handle FILL among other things). I've written a flexible but crude
implementation to extract T.4 1D images, but (1) it needs optimizing and
cleaning up and (2) most fax machines now use T.4 2D or T.6 compression so it's
not very useful.
> Sanselan cannot read CCITT compressed TIFF files
> ------------------------------------------------
>
> Key: SANSELAN-48
> URL: https://issues.apache.org/jira/browse/SANSELAN-48
> Project: Commons Sanselan
> Issue Type: Improvement
> Environment: Not applicable
> Reporter: Paul Wolfgang
>
> Compression types 2, 3, and 4 are not supported. The TIFF specification
> states that type 2 must be supported and types 3 and 4 are optional.
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