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Gernot Hoffmann wrote:
Nothing wrong, using oRGB, besides the fact that we
will be the only users ...
I was thinking ... does it matter at all, if we were the only users ... ? As long as we embed the profile into the files, I can't see any problem with this, right ?
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Christian,
thanks for being interested in my stuff:
The data for OptiRGB and the 2D gamut version are shown
here, p.17:
http://www.fho-emden.de/~hoffmann/swatch16032005.pdf
The profile can be downloaded:
http://www.fho-emden.de/~hoffmann/OptiRGB.icc
It would be simple, drawing a 3D visualization:
http://www.fho-emden.de/~hoffmann/gamshow15052009.pdf
OptiRGB has been an exercise - a wide gamut RGB space
with real, physically possible primaries.
ProPhotoRGB isn't that bad - in some cases it seems to be
a practical solution:
I had printed page 9 of the following PDF, where the colors
are defined by CIELab:
http://www.fho-emden.de/~hoffmann/munsell15052009.pdf
Though I'm using high end equipment (better no name, the RIP
isn' an Adobe product), the result was not convincing.
IMHO CIELab isn't treated as it should be.
Then I converted the PDF by Acrobat 8 into ProPhotoRGB
(pRGB), but without being able to assign anywhere a rendering
intent. I think, in this case it's OK, because pRGB has
white at D50 and they grays are reaching from L*=0 to L*=100.
The printed result, now using pRGB as input profile in the RIP,
with rendering intent Absolute Colorimetric on almost neutral
paper, was considerably better.
The ProPhotoRGB file, loaded by Photoshop, echoes the correct
Lab values - within 1 unit accuracy, despite only 8 bpc numerical
resolution.
If somebody wants to continue the discussion: I'm asking politely
for a direct personal post via
MyFamilyName-with2n@fho-emden.de
because I don't like the new forum style.
Best regards --Gernot Hoffmann
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