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Posted to fop-dev@xmlgraphics.apache.org by "christian.pestel (JIRA)" <ji...@apache.org> on 2014/12/12 01:36:13 UTC

[jira] [Commented] (FOP-2435) AFP CMYK TIFF image data converted to AFP IOCA TIFF LZW compression algorithm

    [ https://issues.apache.org/jira/browse/FOP-2435?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14243468#comment-14243468 ] 

christian.pestel commented on FOP-2435:
---------------------------------------

from Luis :
The IOCA spec certainly allows that. I think that when a lot of the AFP code was written there were lingering doubts about the LZW patent and that may be the reason compression is not done. I will need to take a look.


> AFP CMYK TIFF image data converted to AFP IOCA TIFF LZW compression algorithm
> -----------------------------------------------------------------------------
>
>                 Key: FOP-2435
>                 URL: https://issues.apache.org/jira/browse/FOP-2435
>             Project: Fop
>          Issue Type: New Feature
>            Reporter: christian.pestel
>
> If the CMYK TIFFs image file is compressed (LZW), Fop decompress the data during image loading and convert datas in AFP IOCA resource with these IFD parameters
> - Image Encoding Parameter: Compression algorithm: No Compression
> - Image Encoding Parameter: Recording algorithm: RIDIC
>  
> Is it possible to compress AFP data image ?
> and set IFD parameters to
> - Image Encoding Parameter: Compression algorithm: TIFF LZW
> - Image Encoding Parameter: Recording algorithm: RIDIC



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