freieFarbe/freeColour HLC colour system to be accepted as a national standard for "Open Colour Communication" in Germany

V Stuart Foote VStuart.Foote at utsa.edu
Sun Dec 3 19:51:35 UTC 2017


"Christoph Schäfer" wrote
> ...
> 
> Currently, an older version of the HLC palette is already included in
> Scribus 1.5.3+ (L*a*b*) and the latest LibreOffice (sRGB). And speaking of
> Scribus, the juicy bit is that the colour reference will most likely be
> produced with Scribus 1.5.4svn, because it offers the highest colour
> precision for fill colours (64 bit). No other DTP software comes close in
> this regard.

Christoph, *

This is a logical progression and well received, congratulations!  

So LibreOffice now needs to verify our sRGB .soc palette to matches the sRGB
values for the HLC/CIE Lab colors submitted to DIN.

As noted in our BZ tdf#104052 when we implemented an HLC color palette, the
dtpStudio prepared PDF color fan had listed sRGB values for each HLC color
could differ considerably from the sRGB color values of   freecolour-hlc.soc
<https://opengrok.libreoffice.org/xref/core/extras/source/palettes/freecolour-hlc.soc>  
we distribute.

Not wrong (the CIELAB color conversion to sRGB depends on algorithm
used--adobe CMS vs little-CMS2 and ICC profile) but we need to assure that
our published .soc file matches what has been submitted to DIN.  

Would you please post the sRGB listing of the DIN submission to the TDF BZ
issue [1]?

Thanks!

Stuart

=-ref-=
[1] https://bugs.documentfoundation.org/show_bug.cgi?id=104052



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