Re: U.S. Web Coated (SWOP)v2 vs. SWOP2006_Coated5v2
Re: U.S. Web Coated (SWOP)v2 vs. SWOP2006_Coated5v2
- Subject: Re: U.S. Web Coated (SWOP)v2 vs. SWOP2006_Coated5v2
- From: Steve Upton <email@hidden>
- Date: Mon, 7 Jan 2008 10:52:25 -0800
At 11:29 PM -0500 1/6/08, Roger Breton wrote:
>Wow! That's a fantastic analysis. In this instance, I'd favor looking at the
>results from the point of view of AbsCol since the media white point is
>almost the same between the two datasets. So that, we're really comparing
>apples with apples. You know, I'll buy the percentage differences are small.
>But where are those differences in colorspace between the two datasets?
>Since they both have the same 300% total ink limit and CMYK Lab. Is it in
>the overprint colors (RGB)? The neutrals? I'd wish our friend the color
>wizard, Steve Upton, would whip his ColorThink wand and highlight in his 3D
>graph where the difference lies between the two datasets. I'll bet Steve
>will say it already does and I've been sleeping all this time!
>
>
For once I am happy to say that this feature is, in fact, available.
Setup the ColorWorksheet with the two sets of data and delta-E turned on.
Click on the header for the delta-E column twice (once to sort by delta-E, the other to reverse the sort and bring the worst offenders to the top)
Then, graph the colors in the 2nd list (by selecting the popup above the color list, and choosing 'graph')
Then graph the delta-E values (again, select the popup above the delta-E list)
Finally, select the first color in the list (the highest dE value) and then shift-select somewhere down the list so you have a group of the highest dE values selected.
The graph will now have vectors depicting the color differences between the two lists AND the selected colors with have white cross-hairs highlighting them.
Note, the cross hairs only appear if you have one of the 'normal' lists graphed in addition to the dE/vector list (will be corrected in a near-future release).
And no, I don't expect you've been sleeping. Taking many many measurements and pining for a spectroradiometer is more like it! (didn't get one in MY stocking either!)
Regards,
Steve
________________________________________________________________________
o Steve Upton CHROMiX www.chromix.com
o (hueman) 866.CHROMiX
________________________________________________________________________
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