Digital BW, The Print

Do you really mean UCR or should it not rather be GCR i.e. Grey component
replacement

----- Original Message -----
From: "Editor P.O.V. Image Service" <editor@...>
To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
Sent: Tuesday, May 07, 2002 10:51 PM
Subject: Re: [Digital BW] Re: Piezo v. Epson resolution -- was (unknown)


CDTobie@... wrote:

>
> What I haven't quite doped out yet is the relationship between gray
> balancing
> and custom ICC profiles with the new machines. With the total Under Color
> Removal, for truely neutral images the profile should not any effect,
> other
> than controlling the gray ramp... though it would still be great for
> color
> controlling tints.
>
>

The question is, with Under Color Removal, has the driver applied an
internal ICC file first, or does it assume a specific profile has
already been applied..?  In either event, is that the same profile as
used for Full Color prints given the same paper settings...?

Here's why it matters...

If the driver is simply desaturating and then printing to a specific
profile, altering/controlling where hues map along the grey ramp will
only be possible if one converts to greyscale first.. However, if the
profile the driver uses is actually mapping to the greyspace, then, one
could conceivably use different profiles to simulate converting to
greyscale from different channels...

Hope this digression doesn't make anyone too crazy..





[Keith]



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