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From "Jean-Baptiste Quenot (JIRA)" <j...@apache.org>
Subject [jira] Commented: (COCOON-1301) [Patch] Image Operation Reader
Date Wed, 08 Feb 2006 09:30:00 GMT
    [ http://issues.apache.org/jira/browse/COCOON-1301?page=comments#action_12365535 ] 

Jean-Baptiste Quenot commented on COCOON-1301:
----------------------------------------------

I just tried scale-0.04-jpg, and I have a few questions:

* is it possible to change the resampling algorithm?  Current resampling looks ugly.
* is it possible to change the quality of the generated JPG?  We added such a parameter recently
for ImageReader.

> [Patch] Image Operation Reader
> ------------------------------
>
>          Key: COCOON-1301
>          URL: http://issues.apache.org/jira/browse/COCOON-1301
>      Project: Cocoon
>         Type: Improvement
>   Components: Blocks: (Undefined)
>     Versions: 2.2-dev (Current SVN)
>  Environment: Operating System: other
> Platform: Other
>     Reporter: Niclas Hedhman
>     Assignee: Jean-Baptiste Quenot
>     Priority: Minor
>  Attachments: imageop-block.zip
>
> I would like to contribute a fairly flexible and powerful Image Reader that is capable
of 
> performing a stack of Effects, such as Scaling, color manipulation, and coordination

> transforms (rotate, mirror and so forth), in a pluggable manner. 
>  
> The ImageOpReader also reads any of the graphics formats supported by javax.imageio 
> package in JDK 1.4, including Png, Jpg and many more.  
> Any image can be returned to the client browser in any of the supported formats. 
>  
> There is still a problem with the AffineTransform operations, and I am working on sorting
these 
> out, but; 
> 1. The block is already useful to many as it is. 
> 2. I could need some help getting the AffineTransforms to work properly. 
>  
> Stuff that is still left to do; 
> * Image Operation tests. How does one test image tranforms? 
> * JavaDocs. 
> * User Documentation 
> * Get Rotation & Mirror transforms to work. (Problem related to clipping outside
the positive 
> coordinate system.) 
> * More samples - The bulk are in place, but more doesn't hurt. 
>  
>  
> I would *really* appreciate if the ImageOp block becomes part of the standard Cocoon
2.2 
> distribution. I am willing to help out maintaining it for the long term, if I am allowed
to... 
>  
>  
> P.S. I already have a CLA on file with the ASF.

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