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Subject: Re: [office] [OASIS Issue Tracker] Created: (OFFICE-3841) The color mode "Watermark" makes images pale, not transparent

On Monday 05 August 2013 12:26:40 OASIS Issues Tracker wrote:
> The color mode "Watermark" makes images pale, not transparent
> -------------------------------------------------------------
>                  Key: OFFICE-3841
>                  URL: http://tools.oasis-open.org/issues/browse/OFFICE-3841
>              Project: OASIS Open Document Format for Office Applications
> (OpenDocument) TC Issue Type: Bug
>           Components: Graphics
>     Affects Versions: ODF 1.2
>             Reporter: Regina Henschel
>             Priority: Minor
>              Fix For: ODF 1.2 Errata 01
> In section 20.104 draw:color-mode ODF1.2 specifies "watermark: colors are
> modified to make the resulting image transparent." That is wrong, the
> image becomes pale, not transparent. The property is only implemented in
> LibreOffice and ApacheOpenOffice, not in Calligra and not in MS
> PowerPoint2010. MS PowerPoint2013 has a general error in display of images
> with assigned filter and can not be taken as reference. The help text in
> LibreOffice and AOO says, "The graphic object is raised in brightness and
> reduced in contrast so that it can be used in the background as a
> watermark."
> For an errata I suggest to exchange "transparent" with "pale".
> We might consider to describe this filter in more detail in ODF1.3.
Just a quick note: Calligra does implement watermark, and we have implemented 
it as making the image more transparent.

So no, I don't particularly agree we should change the specification.

Camilla Boemann, Calligra

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