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is "grayscale profiling" possible?
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is "grayscale profiling" possible?


  • Subject: is "grayscale profiling" possible?
  • From: Armand Rosenberg <email@hidden>
  • Date: Thu, 26 Jun 2003 09:59:23 -0400

I know this question is a bit different (what did you expect...?)

I was wondering if anyone can suggest a technique for making high quality (ie truly neutral) RGB printer profiles *specifically* for grayscale (b&W) printing. The printers are desktop inkjets.

I'm sure there are high-power tools for doing this, but that's not what I'm asking here. I wonder if I can do it myself using what I already have (I'm not really too eager to spend more money). Available tools are PS7, a ColorMouse and CompassProfile. The results using 125 RGB patches and "Grayscale Control" in CP are pretty good but, if I stare long enough and close enough, I still see ever so slight density-dependent tonal shifts in the grayscale prints (the current bane of my color world).

I've wondered on occasion if measuring the 500+ or 700+ patch targets would help, but the thought of spending so much quality time with the ColorMouse has deterred me from actually trying.

Please, no ImagePrint suggestions... these particular printers aren't even supported, and anyway I'm not the least bit interested in spending (gambling, as I see it) $500.

And as far as Jon Cone's new system -- I've stopped holding my breath. In any case, it'll take a while even after it's actually released to see if it really works well, and what the issues are with his inks in various printers and on various papers. His current system doesn't support these printers, nor glossy prints in general.

Back to reality: It occurs to me that the standard profiling target just may not have enough near-neutral patches, since it's trying to enclose as much of the printer's gamut as possible. But in my case I'm willing to scrifice most of that gamut for neutrality in grayscale. These "grayscale profiles" would never be used for printing color, so gamut is not a problem. But can this be done??

Or is my only option to just stop staring...?

Armand
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